I've seen parts 1 and 2 and applauded this take on a new horror character to stand up with Freddy Kruger. The dark humor and crazy creative kills continue in part 3, but at times I felt that Art was mimicking himself and was too self aware and appreciative, rather than organically funny. (Like in the sun glasses scene in part 2).
The female companion to Art was interesting but I grew tired of her and she seemed to interfere with Art at times.
The special effects gore is off the chart and surprisingly realistic. I see part 3 as a worthy effort to explore some other avenues, but risks sending the overall concept on a detour that could easily end the series. I enjoyed parts 1 and 2 more. The last scene which lays some foundation for #4 looks like a good start. The producers have a goose that has laid some golden eggs, they need to be careful not to kill it.