After watching season 1 last year which I enjoyed very much, I was satisfied with the show. I never in my dreams thought that this anime would receive a season second, since most of these kinds of anime are just a glorified advertisement of their source material.But to my surprise a second season was announced and I was eager to watch the second season. And I have to say, that season 2 was decent (Some episodes were amazing while some boring). Main problem with this season is its getting repetitive. Apart from equipment upgrades and party upgrades, i felt like this season was a giant filler arc or something. Overall plot did not progress at all. This was the same feeling , I got watching after SAO 2.A giant filler season , just to introduce some characters and plot so minuscule to the grand scheme of things which can be easily skipped.
This season had a slight change in artstyle, but it's not that much noticeable unless you watch the first season again.
Ecchi in this season , also seemed to turned down. Maybe its because there was only 10 episodes to conclude this arc. Unless the story gets interesting, I would probably drop the third season of this anime (If third season even comes out , most probably not) since its getting repetitive.I also dont get Diablo at all. He already saw Rem and Shira naked a billion times , why is he still flustered about it??
I hope Author makes the story interesting again in an upcoming season.
If you liked season 1 of this show , then you'll probably enjoy this one too.