yeah I started with the LED which was manageable, then I got a nuface and I can't bring myself to do both of an evening so i regularly do neither. the nuface makes a more noticeable difference imo, it's still not hugely impressive but makes me look more "awake". The LED I think needs to be used more regularly than I'm willing to do it. The eye one isn't as annoying to wear, I'd recommend buying that if you absolutely must have one, but again, I don't really see a huge difference.
For skin clarity I'd really recommend getting tret either from skin + me or dermatica, this has had a HUGE difference in my skin