Well, I'll be honest. With NO spoilers.
I really enjoyed Release the Spyce, in lots of moments reminded me of Totally Spies! The score does not give merit to this show as it is actually enjoyable and gave me an overall good time watching. I only gonna warn you that the first 5 episodes are really great, then until the 10th it's a little repetitive.. but to the 10th till the last one, it really gave me some killing/emotional/wtf/great moments. Some said that the plot kinda got predictable, but for me, all the twists got me unexpectedly.
Overall, I really enjoyed it! the soundtrack is really cool, the OP is amazing (gonna miss it a lot), the characters although are not my style, didn't make me feel weird about it and the animation is cool. I recommend watching if you liked totally spies and if you want a chilling kinda cute and fast anime.