I went in skeptical of them adapting Thuy Trang's real life passing into an in-story death, and the special never really won me over on that front. Trini as a character never really gets enough attention to not make her death feel flippant and exploitative, which could probably be overlooked if the tone of the special wasn't all over the place.
The rangers get called in when Rita resurfaces. This is the sudden reappearance of the villain who murdered a teammate, whose actress died in real life, and we're getting jokes about Rocky missing his lunch break. >___>
And the Megazord...the model itself isn't bad but the animation is terrible. Like we had two whole seasons of Super Sentai showing that CGI fights look like shit on a crappy toku budget and they still went with it. <__<
But past that - the actual plot was good. The ground fights were nice, the costumes were really well done I think. And although I think they mistepped hard on utilizing Trini, the ending conversation between Billy Minh and Zack felt like a very sweet and compassionate sendoff, which makes me forgive them a little bit.
Overall I've put way to much thought into a dumb reunion special of a crappy kids show, but yeah, bunch of good and bad mixed in. Enjoyed it overall I think >_>