Yeah hi let's start,
Didn't really like the episode. Not close to the level of the Valentine's day episode (oh god that episode was horrible), and overall not really bad, but probably other than episode 11 the worst episode of season 6b.
I'll actually start with the minor storylines: The Iris and Eva one was not interesting and felt the same exact thing we saw in the previous episode (which wasn't bad, but that's not what I was looking forward to here). The Nash one was nice and I liked seeing Sherloque again. However the ending probably made it worth it. To be honest because Barry didn't feel like the main character this entire season (6b, not the entirely of season 6), I would have liked it more if it was just the Grodd storyline (including the thing with Frost Chester and Kamilla). Probably make it more balanced, as Barry should get much more screen time and role.
About the main storyline: I did like the talks between Barry and Grodd. I thought they were well acted from Grant Gustin and David Sobolov. but at the end is where the episode got dissapointing for me. I felt like Barry forgived Grodd too quickly and it also made no sense - at one moment he doesn't trust him, thinks that Grodd trapped him in his mind to kill him when the mind collapses, thinks that he wants to get an army from Gorilla city to invade Central city. Then Grodd just explains that he doesn't find pleasure in power and wants to live with the other gorillas, and Barry immediately trusts him. And not just trusts him. Trusts him so much that he is willing to give him his freaking powers and combine their minds... At the past Grodd was seen as an exteremly smart creature and a great manipulator, but Barry doesn't think for a second that he is manipulating him. Didn't he have a history of trusting the wrong people? That's literally what he said in the previous episode. You would think that after Thawne and Zolomon he would have serious trust issues, especially against the giant gorilla that tried to kill him and his friends several times...
I know he explained why he trusts him, but that doesn't make sense either. I get what they were going for here: the Crisis changes starts to get to Barry and he tries to undo them, and then in this scene he finally accepts the changes and decide to let go of the past like Grodd did. But the thing is, we barely got to see his reaction to the Crisis changes. Probably like 5 minutes at the beginning and then it's not mentioned again until this scene. And also we never, I repeat, NEVER, saw him trying to undo those changes. It's like the writers intended it to be a big storyline but then from some reason deleted it from the script but forgot to change this scene. So because of all that, it makes 0 sense for Barry to trust Grodd, which is the main point of the episode. I know it's pretty small in a 40 minutes episode, but it's such a bad writing for a driving force in an episode...
The fight between Grodd and Solovar was too redicilous for me. I know it was in the comics, but Grodd becoming a speedster, having that lightning suddenly on the chest, and having Barry and Grodd combine (although we never saw Barry doing something like this before) and say "Run Grodd Run"... I couldn't handle it. It was all too stupid for my taste. Not like some of the dialogue in Legends of Tomorrow season 4 kind of stupid, but still pretty stupid. Also the CGI was pretty horrible there. Like Solovar's armor seriously looks like PS1 graphics (I know it's a cliche at this point to say that but I'm 100% serious here).
Also Grodd becoming a hero bothered me. I'm not a comic book guy I don't care because it's different from the comics (although I do understand why people hate changes like that to a big Flash villain). It's just that Grodd is such an iconic villain on this show at this point and an annual thing, appearing every year on the Flash (except for when he appeared on Legends season 3), and then he just becomes a hero. And he's not just good, he gets the main hero powers (temporarily) and has a symbol (kind of) and everything... It's like if Lex Luthor would suddenly become a Superman ally and a minute later get a super suit and starts to fly around.
I know it doesn't sound much but for some reason the episode really didn't work for me. I guess it wasn't that bad but more dissapointing because a Grodd episode is one of the best parts of every season (hell even the season 3 one was great, and it's not a great season), but here it was pretty meh. Probably 7.8/10.