I have a 50mm synapse with a 6boost manifold and turbonetics 62-1. At 10psi it worked quite well, no spikes, no creeps. When I tried to up the boost it didn't respond very well. There are so many configurations it takes time to get it just right. I ended up using my standalone to control boost to 19psi but I may go back to using just the W/G.
Make sure you get the complete kit with flanges and clamps, I made the mistake of buying just the w/g and found suitable clamps to be very expensive.