We've been getting the mixed organic box from Abel & Cole for nearly a year now and I absolutely utterly adore them. Our box gets 3 fruits, 4 veg and some potatoes (but not 5 pounds, omg!) every week and we find it's just right for the two of us considering I cook every night and I like to take in leftovers for lunches, too. You can mark what foods you hate (so we never get brussel sprouts, for instance) and what foods you love (so we'll always get mushrooms if they're available) and you can make your choices temporary if you've got way too many onions left over or something.
We live on a gated mooring and the delivery guys put our box right on our deck every Wednesday, and if we add on any perishables, they go in reusable chiller boxes. And we always get a nice newsletter with stories from the growers and recipes and you get to see what all the other boxes got that week, too. I've found it's really nice for breaking out of a food rut as they've given us vegetables I would've never picked up at the supermarket, but I've found we actually really enjoy (like swede, caleriac, kohl rabi, jerusalem artichokes...).
(psst. If anyone decides to join up, PM me and I'll tell you my name as we get a free bottle of olive oil for any referrals, bwahaha)