I had speeds. Didnt like them at all. Accidental key presses were too easy due to the short actuation distance (1.5mm IIRC). Much prefer the tactile bump of the browns or blues.
Im on Romer Gs now and loving them. They feel like brown but with a tiny fraction more resistance.
I have reds (outemu) because that's just what I bought. I'll be trying these green Kailhs (pretty much blue speed switches) on a custom made board at some point.