We tried all the various boxes and found ones we like (bota maybe - the wife buys it), mainly white wines. They seem to keep in the refrigerator fine for a couple of weeks.

Haven't really found a box/bag red that I like enough to keep buying. Instead I keep a bottle of some sort of red on hand so I can have a 1/2 glass with whatever food I cook that night.

Additionally, I order cases of more unique wines from b21 and keep it on hand for special occasions.