ergos are great, the SS side slabs are a little slippy but the shape of the handle and the jimped backspacer help a lot. The blade is a great size for edc, long enough for just about anything but narrow enough to be a good slicer. It is heavier than the Piston, actually feels about the same weight wise as the Cryo, but you get some blade to go with the weight this time.
The speedsafe is fast after the break in. The fit and finish are not perfect cosmetically but mechanically it's great. I also like that there are no thumbstuds to hang up in the pocket, also keeps the lines of the knife looking clean.
It would be my regular EDC knife if I didn't have a Piston. I still carry it once and a while if I want something different or if I am going somewhere that I am worried about losing it. It has replaced my cryo completely.