I'm using this cab with H&K Grandmeister Deluxe 40. I have changed several cabinets while playing with Tubemeister 36 and Grandmeister Deluxe 40 while trying to solve a common high-end frequencies problem of these amp.
This cabinet, paired with Monster brand speaker cable, made a huge difference - there is no harsh highs and the whole sound is punchy (as I play mostly with medium gain) and the treble control isn't turned fully counterclockwise anymore. I was using Harley Benton Vintage G212 cabinet before and, despite the speakers are the same, H&K cabinet is well designed and sounds much better with H&K amp (at least Grandmeister Deluxe 40).
I wasn't sure if the price I am paying is worth the cab at the beggining, but now I mus say that if you have Hughes & Kettner amp (Tubemeister or Grandmeister series), this cabinet is worth the price and probably a must-have.