DRF-analyzer reports an average DRF of just over 4, which is ever-so-slightly on the high side. For a 1-CD rip, using a lower resolution such as 608 x 256 might have reduced the appearance of compression artefacts (at the expense of a reduction in fine detail, of course). However, it looks nicer when viewed on a CRT TV, which is more forgiving than an LCD display.
I love the little fixes - the receding view of the Star Destroyer through the escape pod porthole, the Death Star graphic during the rebel briefing. These are the things GL should have concentrated on, instead of adding puerile CGI slapstick. The Han-shooting-Greedo shot was a bit clumsy in version 1, this time it's much improved and flows really well.
Congratulations DE for making a watchable Special Edition!