There's plenty of woods, a creek with a bridge, a fort (multi-story log construction) and a "town" (2 rows of plywood buildings. There is also a speedball area with irrigation tubing and plastic drums.
It's field paint only, but if you call up a week in advance, they'll will get you pretty much any RPS brand paint you want (so long as it's in stock with the local distributor). Prices are around $50-65/case depending on the specific paint you want.
Greg (the guy the runs the field) is a really helpful guy. When my girlfriend complained about the accuracy of the stock pro/carbine she was using, he let her borrow one of his barrels. When my remote line blew out, he let me borrow one of his. When a buddy of mine showed up with a brand new cocker, he helped him time it.
Paint and CO2/air fills are well priced, and there is no field fee. It costs as much to play there as it does to just to play in the woods.
It's not a very well known field, so it's best to go with the private group route, as there usualy won't be many other people to play with.
The paint, price and staff is great. The only thing the field really lacks is frequent costumers. The price and selection of paint make it a good field if you have your own group (cheaper then Splat Action, Weekend Warriors, Portland Paintball and Hit n Run). If they had more people show up, I would rate it a 10 and be there every other weekend.