It is great that TD received all of the under-the-hood updates and the overall reno. And it is great that it is booking lots of big top-tier acts, and I hope it continues. And I am really glad that Hamilton has a functional NHL-capacity arena. And I still hold out prayers that the city can one day somehow get a team (which would need an altogether new arena).
But I do hate to say that TD simply does not compare with Scotiabank. Since the Christmas holidays, I have attended a Raptors game and a Leafs game at Scotiabank, as well as the TD Coliseum PWHL game and a Rock game at TD. These events were all very recent, so my memory is fresh and I have actively compared the two arenas. Scotia is far from perfect, but it beats TD handily in pretty much every respect --- I will spare you the rundown. [Scotia is well into its own $350 million renovation and they are working on the 300 level right now, so there is a bit of temporary messiness there.]
I was crazy excited for the renos, but I have to say that TD had a more pleasant feel when it was Copps/FOC, at least to me (I also went to two of the Rock's final games before the arena shut down for renos), so I do hold out some hope that the atmosphere/feel can be improved with some paint and some other cosmetic or other minor alterations.