Well I just watched the 2006 limited editionDVD theatrical version of new hope and it's ok
last time I've seen unaltered version was back in early 90' on VHS and this is a similar in few aspects, the picture is very grainy and blurry but over all a good experience, only had to switch the size into cinema option which widens the display.
I can never understand all this additions made by Lucas, as the original version is bloody awesome, sure there are visible flaws here and there but with the technology available back then it is a visual masterpiece. The attention to details on some of the props is breath taking especially the Millennium Falcon and the way they managed to pull some of the shots in space just amazing
Overall I'm happy with the purchase and would recommend watching it, it may not be as crisp as the remastered blu rey version but it has certain charm to it and as far as I know it's still the best official release of unaltered version out there, so even for that matter it's worth owning it.
Btw; @the forceuk that was a good read, and who knows we might get an ultimate version in 4K and lets hope it is the unaltered one.