In my opinion, the stadium was in really poor shape by around 2010 or so (as many pics in this thread have attested). I think at that point the 'this stadium is god awful' complaints would have been quite valid. It did have a depressing, abandoned concrete warehouse feel. But I really think the work they put in the last 10 years (MUCH better turf, dirt infield cut outs, Flight deck, better concourses) plus the renovations we're seeing this off season and next, have taken the dome to a totally different level. Of course it's not Fenway or PNC Park. But it's also not bad at all, and frankly when it's packed it's pretty awesome.
I'd still be thrilled if we ended up with a totally new ballpark at some point, but I'm surprised at how much I've come around to the fact that a renovated, updated dome that has actually had some thought and care put into it is actually pretty decent.