Episode 1:
The first episode has the makings of a decent sports anime, but it'll take a couple of episodes before I can really tell. The plot, humor and characters for this episode were the basic archetypes that you see in every sports anime so the skeleton for something good is there, but it depends on how much flesh they can put on those bones. The first episode didn't show me anything special, but it also didn't drag or get boring at any point. The humor was fine, it didn't make me laugh, but I wasn't offended by it either and maybe once the cast starts growing some chemistry it could improve.
I don't really know why the girl was even in this episode and it worries me that with the reverse harem tag, the sports part is just going to be perfunctory and we'll just end up with stretches of episodes that are nothing but the girl getting hit on by each of the guys. In this episode was basically standing to the side not doing anything while the guys went along and did their thing. She left absolutely no impression and if she'd been completely removed from the episode I doubt anyone would have noticed.
The art and animation were just okay. Some of the running scenes did look snazzy, but the general animation was pretty stiff, had a lot of still frames and many shots were lacking in detail. The color palette was bright and vibrant without being distracting which was nice. The character designs were fine, but nothing really remarkable. For a Madhouse production this looked kinda meh.
All the really great sports anime I've seen have had more memorable first episodes than this one. They took the same basic framework as this episode and added their own personal stamp to it. This episode goes through all the right motions, but hasn't started making any identity of its own yet. It could just be a slow starter, Free was certainly slow at the start and that one turned out to be pretty good. Or in the worst case this episode could just be a tease and the real reverse harem shit starts up next week.
Bottom line it's a meh episode.