I'll agree with most on here - it was nowhere near as bad as made out and given the back screen problems, it's a minor miracle they managed to get anything on air at all, let alone some actually quite good stuff.
I think the main problem was that it came straight after a couple of very strong years, dominated by the Slaters so the problems, especially with that family (losing Lynne, Little Mo, Kat temporarily) seemed more pronounced.
Plus of course Grantham's suspension, Dan Tulip leaving causing that plot to be completely changed, Windsor being sick...
I do think that Kat had become so central by that stage that her storyline that year being thankfully woeful caused a lot of damage. Even once she went we had the start of the I'll advised Little Mo/Alfie romance.
As also mentioned, I found the chipping away at Den with the overtones of him fancying Sharon (the one thing that had always been 'pure' about Den was his paternal love for Sharon) and manipulating Zoe into bed (or was that 2005) were quite horrible to watch. Also didn't care for the affair with Kate.
Overall I thought it was okay though but then i'm one of the few people that didn't mind the Ferraira's as characters. Yes, the kidney plot dragged but i understood why even at the time so gave it leeway and i actually thought the characters were okay. The Miller's less so, but again i didn't think they were as dreadful as most viewers.
The aftermath of Janine killing (sort of) Barry with Pat and Natalie determined to get her for it with Paul stuck in the middle and it finally playing into Laura's death was actually very good. As was Andy's manipulation of Sam leading up to Den taking the Mitchell empire and regaining the Vic.
Finally we had the wonderful Chrissie.
I think I'd rather watch it than anything since except for that wonderful 18 months from Sept 13 to February 15 which I really do think was very good, although it has unfortunately led to huge problems with the plots it started.