While the MSRP of the LCR-22 is $524, The Gun Rack was selling it for $399. Having bought guns from them in the past, they tend to price their Rugers at the low range.
My first impression of the LCR-22 was that it was almost an exact clone of the LCR in .38 Special and .357 Magnum. The weight felt close to my .38 Special version and it felt very similar in my hand. The sights appeared to be the same as with the original LCR. I have changed mine long ago to the XS Sights Standard Dot tritium sights so I’m going on memory.
I did find the trigger pull felt heavier than that of its bigger brothers. This was a subjective evaluation and was not measured with a trigger pull scale. I didn’t feel any stacking of the trigger unlike in my Colt Detective Special.
If you are thinking of getting one as a training gun, I’d suggest renting one first to see how you like it. The heavier trigger pull was a bit of a negative for me but your experience might be different.