I had one for about 6 months.

Pros: The TubeEQ did a great job of beefing up, and warming up my tone, especially with low ouptut single coils or humbuckers, though it worked well with high output pups as well. Using the expression pedal, you can easily set the notch so that your guitar tone cuts through the mix, which would be perfect for live application. The cocked wah tones are excellent.

Cons: There was always a slight bit of buzz/hum in the background, no matter which guitar I used, which cables I used, or which setting was dialed in. I sent it in to EHX for repair, and they weren’t able to remove it entirely. I don’t know if this is an issue with all of the them or not. It could just be the nature of the beast, like the Worm. Not a big deal to me really, but worth noting.

Also, the bass and treble pots do not cut frequencies, they only boost them. When they are set 100% counter-clockwise, they are set to the original signal. In that regard, the TubeEQ is more like a fancy boost than an EQ. For this reason, the TubeEQ will not stand-in for a standard graphic EQ.

I eventually sold this pedal because I needed the $ to purchase my ’92 Fender Mustang, and it was the pedal least likely to be used often. I already have 2 pre-1983 EHX 10 Band Graphic EQs that I absolutely adore, and plenty of boosted mids options with my LPB-2, Tube Zipper, RI Hot Tubes, and The Worm (in manual mode).

Summary, buy the TubeEQ if you are looking for a way to find and boost a freq notch on the fly during a performance. Do not buy one if you are hoping to do the same function as a standard graphic EQ.