The Model 52 is not a frustrating gun, but it is unforgiving. Correct follow through is required, you can't get away with poor form like you can with a 1911.
However once you get the hang of it, the pistol will astound you. It is a one hole gun and VERY soft shooting

I can not recall how long ago I got mine, but it is over 3 decades. Myself and the previous owner have put countless tens of thousands of round through it so far

You can get every part, they are just hard to find and sometimes pricey. However I have never needed a part for my Model 52. In fact 98% of the firearms I have owned since the 1970s have not needed parts either.

Buy the gun, use it and if/when it breaks then you can worry about parts.

If the price is reasonable, just buy it. If you do not like it, I will give you your money back for it, plus shipping