I always found the Streamliner (and the TC, and a few similar heads before it) would get lost in the mix too easily, and I'd find myself nudging the volume up on an effort to get some tactile response from it. After a certain volume, when the magic electronic power management kicket in, it would go flubby and lose its shape.
Whenever I went back to my Walkabout, AG500 or more trad amp, I'd find I'd have a more authoritative 'present' tone at a much lower volume. It just had more about it.
All IME, obviously.