Re: Any one here own/play a Bad Cat?
Bad Cat and Matchless are basically the same family, since the founders of Matchless, Mark Sampson, Rick Perotta, and Phil Jamison sold it to Jamison. Sampson's next company was Bad Cat, then Star. Jamison also had a run called Overbuilt.
These amps made their name by being considered one of the first "boutique amp companies." They have their own sound, separate from Marshall, Fender, and Vox, but lean toward Vox/Marshall. The reason is that they often took different classic circuits and mixed/matched them, such as RCA Bassman Pre into JTM 45 power section, or EF86 pre section into AC-30 power section etc.
Also consider that Both Bad Cat and Matchless have quite a few models. For my particular taste, I like the EL-34 amps from these companies, and their EL-84 amps are great, but I'd probably still revert back to Vox for the definitive EL-84 sound.