Her theme is also amazing, being a remix of multiple other themes from other games.
Something I am not sure I necessarily "dislike" but I noticed is that Tyranitar might be the only Psuedo-legendary that isn't featuredon any major trainer's team during the story mode of most Pokemon games. The only time I believe its used is when Blue (and a few other trainers) uses it in a few rematches, which is cool, but also kinda feels like a cop-out since rematches are usually optional.
This is a bit strange given that Psuedo-legendaries typically are reserved for the elite 4 or champion. The only other exception I can think of are Kommo-O and Hisuian Goodra, which didn't have any major trainers use them, but they were still Pokemon featured in boss battles as part of the story mode in their respective games. We also had a dark specialist in gen 2 who could have used an under-leveled one over one of her filler Pokemon like Vileplume. Lance could have even used one over one of his Dragonite. Just seems a bit odd that they did away with this trope in Gen 2.