I've never had Saitek pedals, so I can't say how the Simpeds compare.
I came over from CH pedals. I find the Simpeds a little, (and I mean tiny bit) more comfortable than the CH because of the wider stance. Both are stable, both have toe brakes, and both work reliably, for me. I've had the CH pedals for eight years, and the only problem I had was the right toe brake quit working. The Simpeds I've had for just over a year, and they work great. I've only calibrated them the one time when I installed them.