Count me as one of the Remora lovers. I keep trying out tons of other holsters of different makes and materials, and for the past few months, I have actually found a few that I like enough to stick with long-term. But still, I find myself unable to deny the ease and comfort of carry that Remora offers. Just poke it into the holster, poke the holster in your waistband, and go. No fiddling with or fighting against clips, no buckles, no sliding it back and forth on your belt. Just grab n' go. The only reasons I started to stray away from them are: 1. When you get sweaty, that tacky, rubbery surface can really irritate your skin, 2. They're kinda "puffy" and take up more room inside your waistband than, say, a good Kydex or leather holster, and 3. They do sometimes have a tendency to shift upwards in your waistband if you sit down in your car, which necessitates a little bit of adjustment when you get back out. Otherwise, they're cheap, they're durable, they take all the pokey corners and edges out of your gun, they protect your gun wonderfully without wearing off the finish, they're quick to put on or take off, they're infinitely adjustable for depth/angle, they make for an easy draw ... just all kinds of awesome.
That said ... these days, most of my carry guns are riding in one of the following holsters:
1. Bladetech Klipt (I prefer the non-ambidextrous ones because they sit lower, the ambi version for my XDS 4.0" required me to drill a hole to move the belt clip higher);
2. 5.11 AIWB (I only have one, but it fits my G19 and G26 wonderfully);
3. Barsony Leather IWB (for my 2.5" S&W 686+ and SP101);
4. old no-name OWB leather slide holster I modified to add a "sweat shield" - THE most comfy holster EVARRRRR, and fits darn near every semi-auto I own, but doesn't always conceal too well;
5. Rainier Arms Stealth Operator Full-Size Multi-Fit OWB (sheesh, what a name) - surprisingly cheap and fits MOST of my semi-autos and conceals well AND actually has a sweat shield ... but it just isn't quite as comfortable because, duh, hard plastic isn't as nice against your skin as leather.
Link to the last holster mentioned, if anyone's curious: https://www.rainierarms.com/stealth-operator-full-size-low-profile-multi-fit-holster