I bought a cheapo QFR w/ MX Browns. Threw some GMK/OG Cherry Doublshots on it.
It's actually pretty nice to type on. A lot more solid of a board than I thought it was going to be.
IMHO, the only reason to knock CM QFRs is if you hate Cherry switches or want a keyboard for bragging rights. QFRs were recommended to me as a great first mechanical keyboard/wonderful bang for the buck, and it was great advice. We currently have two QFRs (hubby on MX blues and me with MX Browns and Stealth caps), and my only quibble with them is the keycaps are junk (even legends started wearing off within a few months) and I prefer backlit keyboards - and their backlit keyboard gets a lot of negative feedback for LEDs dying.
One big problem for them is that they use lower quality components and assembly methods, which makes them harder to work on. It's hard to get a definitive source on this info, since it can be subjective, but
this post might be helpful if you're curious for more info or why this would be important enough for me to mention.
I don't think the QFR is a bad board, I think it's great for the cost if you simply don't care about these points, but there
is a good reason to knock them other than the reasons you mentioned.