We have been enjoying this smallish farmer's market, in no small part because it is a reasonable walk or quick bike ride from our home in West Medford (near the Arlington line).
The Farmer's Market is open from 1-6pm on Wednesdays, and has about eight stalls. It is located north by northeast of the main intersection (Mass Ave/Pleasant St/Mystic St) in the Russell Common parking lot. Aside from a variety of the expected fresh produce, there is a Vietnamese woman who regularly sells Asian vegetables, a cheesemaker ("blessed are the cheesemakers").
We saw the first tomatoes of the season last week. I found them unexceptional (a bit tough, not as flavorful) and I wonder if they were local; at $2.50/lb they were a tad expensive.
The wonderful broccoli was gone, but a great variety of young zucchinis was available (slice, saute with garlic, olive oil, salt, pepper, and maybe a squeeze of lemon or lime). Note that with the very young ones you can eat the whole thing, including the stem cap, which was surprisingly nice.
Peaches were very good and ready to eat but at $2.50 no bargain. They sell good corn, but it seems early for local corn. The raspberries were some of the brightest red I've seen, and bright in flavor as well, and had to be eaten the same day (in part because it was so hot on Wednesday).
Once again this year someone was selling some beautiful little potted purple pepper plants, purportedly picante. The blossoms are also purple, and even the leaves and stems have purple highlights. At $5 it's a nice decoration for the deck, and we will enjoy the peppers later.
Naturally there was a lot more than I am reporting here; I only report the ones I ate. This market is a nice way to augment your produce buying, but will not necessarily fill all your fresh produce needs. It is probably reasonably similar to other neighborhood farmer's markets, and these sellers work other events.
My favorate time at the market is mid to late August, when all the local tomatoes are available. In past years they have offered a fine variety of heirloom varieties.