I have a Sirio 5000 on both my SUV's and I really like them better than my old Wilson 1k's for transmit and receive.
Don't count on the fold over saving your whip though. The whip on the Sirio is tapered and very thin at the top.I was fine all winter long, but whacked a tree limb at 60 this past week and it folded over sure enough. The last foot and half of whip still bent around like a curly Q. I will say I have bent Wilson whips as well, just not to that extreme. It was easy enough to straighten, but I'm sure it will be easier to bend now that it's been whacked once
I had been running it on the drivers side and may switch back now that summer is here. I know not the ideal placement, but bent antennas seem to be a recurring thing with me.
I don't find the Sirio any easier to remove than Wilson. You still have to unscrew it, but with the Sirio I don't have to keep up with a weather cap like I did for the Wilson.