If you already have 1 Pixel controller I don’t see any reason not to go with that. I don’t have a lot of experience with them but that’s because the ones we have haven’t needed much troubleshooting. EC’s tech support is good and much more responsive than MCE these days. There’s a lot of benefit to having the same controller and with that many cars it would make a lot of sense to keep 1 of everything on site to minimize down time.