The only advantage to using biscuits is alineing the two boards. For me it is a wasted step. When doing a glue up, I make sure the boards are properly aligned with each other before tightening the clamps. Any good woodworking glue will be all that's needed. Once cured, the joint will e stronger than the wood! I do have a biscuit jointer, but haven't used it in years.
As far as a table top jointer, Hawkeye 10 said it best, it will be very limiting.