Of course it supports ASIO and WDM drivers, keep playing with the demo, the core program is audio recording/editing/mixing, for softsynths you can add the MidiWorkshop, or have your favorite sequencer sync to it.
You can automate almost every control on the mixer channels, in automation mode you can highlite or "mark" a section of the track, and completely readjust the mixer channel, after the marked area plays, the mixer channel will automatically reset itself back to how it was setup before the marked area, so IMO this is right there with Samp's object editing, and "freezing" a track can be done in the same fashion that it can be done with Sonar, not quite as nice as a one click solution such as Samp's, but still a usable method.
The built in keyed noise gates and compressors can be used for ducking and de-essing, you can also route the prefader FX patchpoint either before or after the EQ and dynamics sections of the virtual console.
The Levelizer plugin ($100 - seperate) when used as a peak limiter is so transparent, it has become my "home" mastering tool of choice.
SAWStudio has NO copyright protection crap in it at all, If you need to re-install it for any reason you can just do it, you don't have to get any authorization codes or use a dongle.
When you e-mail tech support, you get a reply (usually very fast too) from the creator of the software, there is also a place on the website where you can chat with Bob live, if he's at the computer.. also take a good look at the online training section of the SS website, I don't know of any other software package that has anything even remotely like this.
I guess one of the main reasons I like it so much is because as a recorder/mixer it works very much like hardware, you can setup a mixer channel as an input, and record from that channel to any track on the multitrack, using the built in EQ, noise gate, compressor, and any pre fader FX plugins before going to "tape", while at the same time using the post fader FX, and any aux send/return FX to monitor wet.
While it certainly doesn't have all the bells and whistles of some programs, it does do what it does VERY well, it truely replaces and exceeds my 1/2" 16 track TASCAM reel to reel, Mackie 24x8 console, as well as a rack full of compressors and FX units in a way that Sonar 2.2 XL or Cool Edit Pro 2 never really could, and the sound quality is absolutely top notch.