Although it certainly wasn't anywhere near as good as DB, DBZ or DBS, DBGT was still enjoyable and actually got pretty decent near the end when it came to the Baby and Shadow Dragon arcs. In fact, Akira Toriyama himself seemed to enjoy DBGT, even completing an illustration of Super Saiyan 4 Gokū (a form which he didn't design himself).

Akira Toriyama didn''t like Dragon Ball GT at all.

GT is just garbage. Only Baby is a somewhat goodish villain in some parts. The rest is just absolute garbage.