My 637-2 has been my EDC for pushing 2 decades. Carries at 4 o'clock in a cheap Uncle Mikes. Regular ( at least 2X /month) practice. Since company regs don't allow firearms in Shop or office buildings, has to spend the day in center console of truck in all sorts of weather from blistering hot and humid, to ice and snow/condensation, etc.
Wipes clean, Altamont solid wood combats (sold with the gun new as an option) fit & feel great for my hands, carries with factory + P (whoever's cheapest when I need ammo). IL has never showed any issues. It is a 2002 gun.
The bottom line for me is that I don't really care about the 637 as much as I do ALL my other S & W's which are in the safe, well loved and cared for and shot as frequently as I can. For my EDC I needed something that I would not agonize over if stolen, dropped, scratched up, etc. and the 637 just fits the bill perfectly for me. However if you are carrying daily....you for sure want something reliable and this is a good one.
Of course...just my 2 cents.