Conversion kits are fine for training but I don't care for them as a substitute for a standard .22 for fun shooting. The conversion kit usually has all the good and bad features of the host gun, plus it is usually heavier and bulkier than a good .22 has to be. Accuracy and reliability may be OK, but conversions are not noted for either compared to a regular .22.
What's your favorite .22 handgun, and why? I've thought about getting one.