My use case is odd in that I have a particular taste for relaxed Japanese menswear—I ask Luxire to pattern and replicate stuff from JP that are cut as I like, but within Luxire's excellent fabric and mill selection. As a result my fit alteration and psychic tolerance is a hair more lenient than the typical menswear troubleshoot e.g. cuff length, collar gap, so on. However I'm very particular about button and pocket arrangement, lining and structure, weight and fabric composition, and the gristle of other annoying enthusiast business.
If you are patient, and happy to practice your prompt writing—and the sort of person willing to burn time (and money) on a risky test garment here, a potential failure there, all for the promise of an incredible flip on a rare piece—there is literally no competition in this space online. I hope to continue filling out the rest of my wardrobe from Luxire for a long time to come.