Size and general design is good.  Folds into a nice compact package.  However, it is lightly constructed and a bit tippy especially if it were loaded with a few liquor bottles and mixers.  The shelf would never hold the weight of the liquor bottles shown in the picture.
For the price, I can't complain too much.  But I would rather spend twice as much on a product with better quality.  Unfortunately, I was unable to find a higher quality version.  I will do a few modifications to strengthen it as much as possible.
My suggestion would be to offer this as a "standard" model and a stronger/higher quality model as a "deluxe" or "heavy duty" model at a higher price point,