Greetings, Tony of Atlanta!
To clarify, the two F&P washers currently sold in the US are GWL11 (EcoSmart) and IWL12 (Intuitive Eco). The mechanics, agitator, wash basket, etc. are the same on both machines. The electronics are different, with the IWL12 being "smarter" and more flexible for cycles and options . . and with a higher price tag to match, LOL.
I've had an IWL12 since October 2004. It replaced an older GWL08 that I got in August 1999 - nothing wrong with the GWL08 (it went to live with my grandmother). F&P handles a full load perfectly fine. I ran a load of seven pairs of denim jeans yesterday. They definitely rolled over, several times.
One thing of which to be aware is that F&P takes a slightly different approach to agitation than the typical top-loader. Instead of aggressively rolling the load over at a fast clip, it's rolled more slowly with some sloshing back-and-forth at the same time.
As for spin, yes, a full load (or any size load) spins at 1000 RPM for a full six minutes on a regular cycle. Or 670 RPM if medium spin is selected. Perm Press (Creasables) and delicates spin at 300 RPM (or 670 can also be selected for Creasables).