This would really be 8 or 9 for me but I'm giving it a 5 because this doesn't need to be a trend.
I really liked what they did with Mugen Train and the movie being the first half of the last season of the show.
Here though? I knew it was going to be the last episodes of last season and the first episode of the next season but...
I didn't mind it in this case because at the end of last season, as I was watching it, I thought to myself that I'd really like to see these scenes on the big screen. With that... the episodes from last season were fine but did you have to put credits at the end of them and even the opening theme to it? There were even a few times it did the cut as if it was going to commercial(we all know how anime does that-don't bring that part of it to theaters). They briefly recapped the first season and 2nd season near the beginning.
I could understand if they were going to add some deleted scenes to the previous episodes or something but that's not what this was.
Because of all that, for that new material, it honestly wasn't worth the price of admission for just that. What should've been about 1 hour, and 10 minutes ended up being stretched out to a runtime of 1 hour, and 50 minutes.
If you're going to reuse old stuff and take my money, at least don't waste my time.