What exactly are these bugs people keep talking about? Bug-wise, I experienced more problems in FFXI 6 years after it's release than I have in FFXIV one week after it's release. I've hardly had a problem at all. The only bug I can think of off the top of my head is the UI lag. I can understand saying that there aren't enough features, but it barely crashes at all and runs smoothly on my PC. I never get "stuck" physically in the game, and my inputs have a result that matches what I wanted - unless you mean the speed at which it does what you want, in which case again, that's UI lag.

Inventory sorting, map marking, etc. - all features, not bugs.