I may be going out on a limb, but perhaps the confusion is at least partially due to the reading of "kome" (rice) and other "k" words when it becomes the second part of a compound word. As bootzilla points out, 米酢 is read as komezu since "kome" is at the beginning of the word. However, when "kome" is preceded by another kanji, it becomes "gome". もち米 (glutinous rice) is pronounced "mochigome" instead of "mochikome". Similarly,

生 (nama / fresh) + 牡蠣 (kaki / oyster) = namagaki (not namakaki)
かき氷 = kakigoori (not kakikoori)
振り仮名 = furigana (not furikana)
etc.

I checked both the Pocket Concierge and Sushi Satake websites and learned a few relevant factoids.

- Until January 2018, the lunch courses were 2,800 yen and 4,800 yen (Sushi Satake website)
- From January 2018, the lunch course prices were increased to 4,800 yen and 12,000 yen (Sushi Satake website)
- The Pocket Concierge site in English offers a 10 piece lunch course (otsumami + nigiri) w/ a drink for 12,420 yen
- The Pocket Concierge site in Japanese offers a 10 piece lunch course (otsumami + nigiri) w/ a drink for 10,800 yen
- It is common for prices on the English version of Pocket Concierge to be higher than those on the Japanese site
- It doesn't say if the lunch set offered by Pocket Concierge is the same as those on the Sushi Satake website

Here are the relevant links:

https://sushi-satake.com/menu/
https://pocket-concierge.jp/restauran...
https://pocket-concierge.jp/restauran...

You can read several more reviews of high-end tempura restaurants at Andy Hayler's and Luxeat's websites. I have not been to any of the restaurants listed below, but perhaps the reviews and photos can give you an idea of the experience.

By the way, Mikawa Zezankyo accepts reservations via Open Table and there are some reservations available on a few Sundays in April.

Andy Hayler's tempura reviews

Uchitsu (closed Sunday except the Sunday before a Monday holiday)
https://www.andyhayler.com/restaurant...

7chome Kyoboshi (open Sundays)
https://www.andyhayler.com/restaurant...

Mikawa Zezankyo (open Sundays, closed Wednesdays)
https://www.andyhayler.com/restaurant...

Hatanaka (open Sundays, closed Wednesdays)
https://www.andyhayler.com/restaurant...

Yotaro (closed Sundays)
https://www.andyhayler.com/restaurant...

Mikawa (open Sundays, closed Wednesdays)
https://www.andyhayler.com/restaurant...

Kondo (closed Sundays)
https://www.andyhayler.com/restaurant...

Fukamachi (open Sundays, closed 1st and 3rd Monday)
https://www.andyhayler.com/restaurant...

Ten Ichi (open Sundays)
https://www.andyhayler.com/restaurant...

Luxeat's tempura reviews

7chome Kyoboshi (open Sundays)
http://www.luxeat.com/blog/7-chome-ky...
http://www.luxeat.com/blog/7-chome-ky...

Mikawa Zezankyo (open Sundays, closed Wednesdays)
http://www.luxeat.com/blog/photo-repo...

Kondo (closed Sundays)
http://www.luxeat.com/blog/kondo-high...

>Also, do you have any recommendations on where to start and end up site seeing with a restaurant in mind at the end?

If you enjoy hiking and gardens, you should consider a trip to Mt. Takao. From Tokyo station, you can take the Chuo Rapid line and it will take you about one hour. Once there, you have the option to either hike, take a cable car, or take a ropeway ride to ascend the mountain. In April, the temperature should be nice, though there is always a chance of rain. The scenery on Mt. Takao is really beautiful.

Speaking of beautiful scenery, I would recommend having your post-hike lunch at Ukai Toriyama. The food at Ukai Toriyama is quite good. You will be served a few traditional Japanese dishes, followed by a main course of chicken or beef that you cook by yourself over a charcoal grill. However, for me, the main attraction is the gardens that surround the restaurant and cover over 200,000 square feet. The entire experience is pretty amazing. If you are interested, please Google both Mt. Takao and Ukai Toriyama to see if this type of trip appeals to you.

Just for the record, the price for the course + wine pairing is less if you don't reserve via Pocket Concierge. On the erba da nakahigashi website, the most expensive course is 16,000 yen and the wine pairing is 8,000 yen. There is also a 13,000 yen course.

I hope this is not too off-topic, but I would like to warn everyone about one particular point regarding Pocket Concierge's service. In some cases, and possibly in all, the cost for making reservations in English is higher than in Japanese. One example is Sublime in Shimbashi. Go to their reservation page:

http://www.sublime.tokyo/reservation

If you choose to make the reservation in Japanese via Pocket Concierge, the charge for the chef omakase course is 11,880 yen. If you reserve in English, the charge for the same course is 14,000. The price listed on the Sublime website is 10,000 yen.

I appreciate the Pocket Concierge service and don't begrudge them for their business model. However, if given the choice, customers should try to reserve in Japanese since it will likely be cheaper.

Count me among the group who has been to Arossa multiple times, but not in the past several years.

For another place with an expansive Australian wine list, there is Dance, located across the street from Yoyogi Park. They offer well over 100 different Australian wines, some of them from fairly old vintages. It's strange, though. Dance has such a vast wine list, but their food is very casual and pedestrian. They have verticals of Grange and Hill of Grace, yet only pizzas and pastas to enjoy them with. I was there just last Friday night, and we were the only guests in the restaurant.

http://www.wine-cafe-dance.co.jp/cafe...