I built the panel saw from plans in Shop Notes. They were very clear, so it wasn't hard to do. The price was right (about $200 in materials).
I'm fussy, so I use it to get a panel within 1/4" of size, then make final cuts on the table saw. Two reasons: 1) The panel saw uses a portable 'skil saw', clamped into a carrier. Better-quality blades are available for the portable saw, but they're not like the Forrest blade designed for plywood that's in my table saw. 2) Try as I may, my measurements on the panel saw aren't as good as the ones on my table saw. (Panel saw is often off by 1/8")