That's my dilemma as well. I'm leaning towards the Red, since I already have good stomps that cover the clean boost through mid gain territory. My main goal is getting a Strymon Timeline, though.
Honestly I'm a bit underwhelmed by the Uberschall pedal. Sounds kinda fizzy to my ears, especially compared to the real thing. I wasn't expecting it to sound as good as a real Uberschall, but I think they could've gotten rid of some of the fizz. The other two pedals sound excellent.