Personally, I don't expect any manufacturer's guns to always be without an occasional fault regarding materials, production, manufacturing tolerances, etc. Things happen.
I do remember many years ago when a previous Glock LE rep told me that once the company had addressed some early magazine issues, the G36 had been running pretty well. I remember some mention of an early barrel/feedramp revision, too. Then, there's always the race for follower design to keep abreast of the ever changing JHP designs.
FWIW, I can think of a couple of Glock employees who have chosen the G36 out of all possible models as their personal carry weapons, which would seem to speak well enough to the inherent design of the smallish slimline .45 ACP.
While I've not quite felt like adding yet another not-quite-4" .45 to my collection, I'd not have any particular concern ordering and carrying a G36. Naturally, I'd function-test a representative sampling of my usual carry JHP's through it, which usually means firing at least 25-50 rounds through each of the magazines I intended to use, of some ammo mix, before carrying it.
I prefer to use recognized major American maker ammo for test-fire & function confirmation, too.