Over the decades, I've used many of the "boutique" makers with often long waits: Milt Sparks, Kramer, El Paso Saddlery, Lobo, Sideguard, Rusty Sherrick, Andrews, Bell Charter Oak, Alessi and Mitch Rosen. Plus many other smaller and/or less well-known shops.
Holsters are very individual. Put three people in a room and they couldn't agree on any particular one. Can't really criticize anyone's particular choice, but I could point out some good features or issues that get overlooked in the hoopla created because some gun guy somewhere was using one.
In my experience of 45 years of daily pistol packing, there is ZERO correlation between price/wait and suitability of a holster. You can pay a lot and wait a long time to have "that", and not have anything that is necessarily any better than a readily available model, unless bragging rights are important to you. "I got the unobtainable Brand X!". Frankly, not impressed.
Eg. You can wait a long time for leather pocket holster, and if that suits you, well that's fine. But I wouldn't give you two plugged nickels for a leather pocket holster, that doesn't perform as well as a $30 DeSantis nylon job.
One boutique maker - not to be named - sent me a holster/mag pouch set that I waited a several months for, and the result was not what was pictured and wasn't anything better than you could find today on amazon. Such are the travails common at for smaller shops (that's why you are waiting), where the owner/operator gets tired/cranky/old/distracted/drunk/sick, or some key employee leaves, and everything suffers.
I've been to the DeSantis factory numerous times, and the holsters leaving that shop will be consistent regardless of who is there, or not there, on any given day.
Having said all that... I have two Milt Sparks mag pouches in horsehide that I have been using continuously for 40+ years and they are as good now as they were then. Of course, he no longer sells that model.
I have a Lobo Offset IWB which was well worth the wait and price. Mitch Rosen gets just about everything right on a concealment OWB belt holster. El Paso Saddlery is quality if you prefer historical and lots of stiff leather. I have a bunch of Sideguard holsters and they are excellent.
Just about everything else... it's Safariland (tactical), or Don Hume/DeSantis (default). I am well past the day when I will wait more than a month for a holster, when there are so many readily available good choices.
To each his or her own.