I use the Tascam DP-32 SD in my professional studio to mainly record accoustic music and to create jingles for websites or radio ads.
My set up is very simple because the DP-32 SD is also a very straight forward portastudio and easy to use as its forbearers. I'm running the basic recorded instruments directly into the DP-32 SD, overdub, mix, master and than print directly onto the inserted SD card. The output recorded is exactly as recorded and all buttons and faders react exactly to how they are manipulated. The buttons have that loud noisy click sound when pressed and this is sometimes annoying when mixing silenty. Maybe Tascam should look into this loud button click sound.
The available build in effects are simple to use but one need a bit time to fiddle around until you can really use them, otherwise they can seriously mess up your mix.
The channel audio level meters are exact but the monitor display is a little bit small. I've found the audio outputs a bit limited at the back incase one want to have external effects or just sent the sound to reference monitors. A very robust build piece of hardware but sort of light on the weight side. A second headphone output would also be usefull in order to hear what the musicians are playing because now, only the artist can have headphones. I've hooked it up to another headphone distributor and this way, more musicians can hear each other during the recording session. Otherwise, I recommend it to most studios that want a piece of equipment that don't require lots of cables, space, ouboard gear.