I really liked that The Smurfs wasn't just CGI but was CGI + live action. Seeing real-life people react with horror to encountering Smurfs for the first time was very satisfying; usually, when fantasy characters encounter real-life people in movies, the people don't react with nearly enough astonishment. I also loved seeing the invisible membrane between the real world and the Smurf village being penetrated (which makes the Smurf village visible) and seeing the Smurf village for the first time. The animation scene with two Smurfs riding on he backs of Storks was pretty nice, too.
Gargamel was also very well done, including his facial attributes. It was fun to see that character interact with the real world, including him getting tased by the police, someone yelling at him to take his meds, and him doing powerful CGI sorcery.
I liked the look of the Smurfs' animation better than that of the 2025 version of The Smurfs according to the trailer. The latter seemed to unnaturally "flatten" the shading of the Smurfs, while the former seemed more realistic and vivid. I also liked the general shape of the Smurfs and the slightly furry look of their skin to make it not so sterile.
The animation of Gargamel's cat was done very well—I wouldn't have known it was CGI if not for its unrealistic antics, including a couple of places where it actually laughed...I found seeing and hearing the cat laughing both disturbingly bizarre and somehow funny at the same time.
One thing that seemed kind of lacking, though, was physical interaction between the Smurfs and real-life characters. E.g., they didn't impart any kinetic energy onto the people when they jumped on them and such, I remember one part where Neil's character was looking all around mystified like his house was infested with ghosts rather than at the actual Smurfs, and when he was patting one Smurf on the back, it didn't seem like his hand was actually touching the Smurf. But that seems like it's par for CGI + live action movies.
It was cool to see Neil Patrick Harris of Dougie Howser fame starring in it, as well as the beautiful SofĂa Vergara playing Neil's character's boss.
The narrator's style of speaking seemed kind of like it was catering to dumb people, similarly to the Animal Planet series Too Cute!, but maybe that's just me. It's also probably forgivable since The Smurfs is a children's cartoon.
I found the storyline not bad, and it had a moral to it if not more than one.
Overall, I'd recommend this movie for children. For adults? Maybe, at least/especially if they share my appreciation for movies that mix cartoons with live action.