The visuals were so meh that it doesn't really make any difference if you download it or watch it on a huge screen. Nolan's worst movie along with The Dark Night Rises.
I didn't think it was terrible, but it certainly wasn't what many have cracked it up to be. I need only mention Matthew Mcconaughey and Anne Hathaway in lead roles, and that drops the movie points on my scale. Aside from this, Nolan certainly isn't Tarkovsky when it comes to visuals. I wouldn't call them "crap", but not on the scale of a masterpiece.
All one has to do is look at its score on MC and RT, 74% and 73% favourable reviews from critics, compared to the 9/10 junk on IMDB. It's certainly no higher than a 7.5, and likely more in the range of 6-7, considering the superior films that are rated in the 7s there.