Holsters are a very personal decision. You will get lots of opinions. Do you want a single clip or dual clips on your IWB holster? Leather or kydex? Lots of other questions you need to ask.
For me personally, I tried Alien Gear and SHTF holsters. Then the husband talked me into trying the N82 Pro holster. I LOVE IT. It has suede on the back so it is soft against your skin. No having to wear a undershirt so your holster does not rub you the wrong way. In the middle of the backing is neoprene which not only adds a nice padding, it is also waterproof, and then you have a thin leather layer. The holster is a type of plastic (not kydex) that has a definite click when the gun is inserted. To remove the gun, you have to twist the gun towards you as you remove it. So no worrying about someone snagging your gun. To draw your gun, it is very easy and takes about 2 seconds to get used to. The backing has no awkward bumps that poke you when you bend over. I can wear it all day in total comfort, no matter the temp.