i like both, and own/have owned both.
the eden amp has a furry thick woolly sound, and its eq is one of my favs to use and find a great sound. and the enhance knob is great for DI recording. adds a nice space and breath to a track. you'd be surprised. and it hits 2 ohms, stable. also, the limiting on the eden is more subtle than the thunderfunk, which has a tendency to pump a bit too much for my liking.
the thunderfunk line is just an incredible take on the tried and true acoustic/swr sound. much cleaner sounding, maybe even faster, but definitely thick and punchy. cant really ask for more. the timbre knob on the TFB amps are just too easy to find that sound you want, and along with the enhance knob, you'll barely touch the eq, which is actually quite handy, tho, not quite as dramatic as the eden amp.
and keep an eye out, cause there are few thunderfunk 550s floating on the emporium for great prices, too.