I do like the Line 6 concept not only for the tone, but for what appears to be ease of use. I like the analog type interface (knobs) where you can see the settings at a glance.
My Boss GT-5 drives me crazy at times with all the menus. I've even considered selling the GT-5 & GT-3 and my amps. I am basically an apartment dweller now, and don't forsee a change in the near future. Even the low output amps (5w) are probably too much volume for me to get away with.
I have other effects pedals I could use (MXR Phase 90, Line 6 Roto-Machine, Moreley Dist/Wah/Vol) if I had an amp modeler, but I hate having to deal with all the patch cables, and the expense of a pedal board. The HD300 might be just what I need. Any input guys?