Finished 02, and to be honest I thought the ending was kind of a let down.
There were so many plot-related things that kinda bothered me, and some of them felt pretty lame overall.
For starters, why did they bring Myotismon back?
Sure he was one of the best villains of the first season, but it felt lame how they brought him back for like 2 episodes, and let's not even talk about the way they manage to destroy him. The whole ending scene (the one where they defeat him) felt very American, in the sense of "everyone unite against darkness".
Arukenimon and Mummymon, and specifically the way they died was just a big let down.
Two of the main-villains that had been around for about half of the season, let's kill them in 2 seconds!
Oikawa and his story was kinda weird as well, overall I think it lost a bit charm when suddenly EVERYONE had their own Digimon and the Digital World wasn't so special anymore. :/
02 did have some great things though, characters were still good and I really loved it how the old characters still played a big part of the plot.
The fight between Wargreymon and BlackWarGreymon was one of the most epic scenes during the whole season, and I was actually a bit sad when the latter was destroyed.
Season 1 is still the best them.