Gameplay is extremely similar to the first Spider-Man game by Insomniac and this is more like a long dlc than a full game.
The new powers Miles has with his electric venom abilities are fun and help spice up combat although he has a lot less gadgets than Peter did in the first game. Also a lot of the side activities are just copy pasted from the first game and mostly just kind of boring.
The enemy types are mostly similar to the first game although there are some new types but I mostly found fighting these new guys to be tedious or annoying and the new enemy groups have so many bright colors on the screen in addition to the effects from your electricity abilities it can make it kind of hard to see the dodge prompt around your head for the spidey sense.
The story for this game is what really brought it down for me. Every character around Miles is so bland and annoying that it made it hard to go for any of them other than Miles sometimes, the main villain is cartoonishly evil and was extremely obvious from the first moment he's introduced. The other main antagonist, Miles friend Phin, is so dumb and mary sue-ish that it made every scene involving her and every dialogue she was involved with a chore to sit through. I will add though that I felt like the boss fights in this game were a definite improvement from the first game and I enjoyed them much more, also no forced stealth sequences playing as somebody other than Spider-Man is a good thing.