Have been using WPNUDEV for a couple of years now. I'm no web developer or server admin guy so I do get confused at times with instalations and such even though I've been doing it for nigh on 20 years.
I had a slight problem in that I couldn't install a theme as it kept asking me to sign up (when I was already a member).
Put in a support ticked and it was responded to (with clarity) within a couple of hours - at the weekend! The problem was fixed in minutes.
Great support - thanks guys.
Highly recommended.