I have shot both the .22LR and the .22Mag LCR. Trigger is a little heavy; not as nice as the .38/.357 LCR, but way better than the Taurus 94/941. Reliability was fine, but extraction of spent cases in the .22Mag was sticky and incomplete (as is the case with any revolver that has an ejector rod travel that is shorter than the case length).
If I was in the market for a rimfire revolver for carry or as a "kit gun" I'd pick one up in a heartbeat.
I picked one up from Bradis a few weeks after I purchased my LCR 357 there as a cheaper practice alternative. As Shooter said, the trigger is a little stiffer, but if you can master that then the normal LCR trigger feels like butter. It has made me a MUCH improved shooter. I have no experience with the 22Mag version, but my 22lr extracts perfectly. Excellent revolver no matter the caliber IMO. For what it's worth, my EDC is the LCR 357 so picking up the 22 was a no brainer.
Good luck.