I have only done a couple of gigs (as I am just an amateur musician, LOL) but I own a Bose L1 II w/T1 ToneMatch, (and I have tried a Compact once which was also very nice... [btw, the Model I has been discontinued as far as I know... and has a Big and heavy base unit... and doesn't work well with a T1).

I use a regular run-of-the-mill SONY laptop which is more than sufficient for my BIAB 2011. I don't need to use my usual TASCAM Audio Interface that I use when I use my Desktop PC, because the ToneMatch also has a built-in USB Interface... I also use the KETRON SD2 Midi Synthezier to convert those nice midi tracks into excellent, realistic sounds...

What I like most about using this setup (i.e. BIAB w/notebook) on stage is the ability to read the notes (I play Jazz guitar... mostly solos and some guitar comp sections, and BIAB plays everything else...) is:

1. I just can't memorize all the notes to resort to using the mp3 versions... I need to read the notes on the go...

2. Making mp3 renditions is quite tedious/cumbersome when using the KETRON box as I will have to use the Realband and record each instrument on a separate track, one at a time, in real time... This takes way too much time when preparing for a whole playlist for a gigset...

My only issue is VOLUME!

What I mean is, for some reason the volume can vary from song to song, and so far I haven't been able to figure out a good way to notmalize this... I either make a note about the volume level adjustments, or have a friend/soundman adjust the volume while I play...

With the T1, I only use 2 inputs: 1) The Sound coming from the PC via USB, and 2) the KETRON (I use a USB midi cable that goes to my KETRON and use RCA cables to bring the sound into the T1 for all the midi tracks).

Sometimes, I plug my guitar directly into the T1... but mostly I prefer my small Fender amp...

One final comment about the lack of Stereo sound from the BOSE L1 systems... just remember that on stage every instrument is MONO... you have a guitar player with an amp, a base player with its own amp, etc.... for the audience they "see" the sound from each player coming from a single source... So if the Bose system is used properly, i.e. each performer has his/her own bose unit... it should be no problem... In a one-man-show, I find the Bose also fabulous, can't tell the difference. People love the sound, and most importantly, in small rooms, I don't have to crank up the volume too high as people in the front and the back all hear the same thing...

2008 Gibson ES-339 Custom & 2010 Les Paul Traditional. Fender SCXD Amp
BIAB/RB 2015 UltraPAK + Ketron SD2
Windows 7/64 Intel i5 3550 PC, Tascam USB144MKII
Behringer X1204 Mixer
Bose Companion 3 and/or L1 II w/T1 + SM58 MIC