While some may have liked DX2, for most fans of the first game it was essentially a kick in the nuts. There's virtually nobody who played the first one that thinks that the second had a good interface, good levels, good performance, better gameplay, etc. Someone who never played the first might think this, but that's just coming from a point of ignorance rather than an informed opinion about the merits of the second game versus the first. Sometimes ignorance truly is bliss, although I think that for DX2, it's still probably apathy at best.
"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." -- Bertrand Russell (I think...)