Haha I had a bravo, I sold it for $35, I thought it was weak, like a radio-shack experiment type amp, it offered very little improvement over my laptop soundcard if any so it gathered dust rather quickly in favour of a real amp which should sound transparent and high resolution and improve the audio-signal, this the bravo does not do.
The new owner says it has sweet smooth mids and rolled off highs, he seems to enjoy it, if only for the sake of finding out what a tube sounds like, which is the point in the bravo, ~$50 for a demo of a tube sound, if you want real Hi-Fi sound for cheap or just a simple device with lots of power, I'd look elsewhere, such as a second-hand receiver or a second-hand vintage amp.
I haven't heard the bravo in a long time, but I remember I was using a CD player -> bravo -> Fostex T-5 headphones listening to some rock CD's and my housemate was really getting into it, so I suppose a little Bravo and some Fostex HP's could be an ok investment, but once again I'd look elsewhere, from what I recall I just thought it sounded "radioshacky" and "dusty" and my soundcard directly to headphones was a purer signal.