The great thing about recording to MIDI is that you can always go in and move notes or chords around by hand. So if the quantization makes some parts of your track sound wacky, just highlight whatever notes you want to edit, and drag them forward or backward in time. The same goes for correcting wrong notes — just drag them into the correct position and voila!
Producers: You are also songwriters in your own right. What’s the difference anyway? You are the one making compositional decisions with every click. You should make sure to negotiate publishing percentages where you can. Register your splits properly and collect the money you are due.