Lupton is brilliant and heres a little secret if you're worried about refurbished or not, when I was there (2004/05), all the people who put Lupton as their first choice got in the refurbished ones...the ones who got the unrefurbished flats were either ones who came on clearing or missed out on one of the other halls. Mind you I don't know if theres any still unrefurbished.
The showers are great, instant hot water and the power is like water cannon. Best shower I've ever had. It's one bathroom between 5 people but it was never a problem when I was there, remember people are in uni at different times so its not like 5 people fighting for the showers before 9am.
If you are looking for good value I doubt you can beat Lupton, and either you can get fit with the 30 min walk in every day or get a bus pass, theres buses every 5 mins down the road opposite. The other convenient thing is you have the Headingley Arndale centre on your doorstep, Somerfield, Wilkinsons, Post Office, newsagents etc.