Hmm, a pity that no-one's replied yet!
I've got an MG16/6FX. I sold my Mackie
1604VLZ to get it because I really wanted some stereo channels (I'm a keyboard player) and
the idea of an extra inbuilt reverb appealed to me (that way I can leave my Virus KC
effects unit set to create tempo-synced delays).
It's not a bad little desk -
it's fairly clean and quiet, and definitely usable in a live situation - I don't know how
the mic preamps hold up compared to other well known quantities like the Mackie VLZ-Pro or
the (shudder) Behringer IMP, having not directly A/B'd them - but they sound pretty good
to me, and having the inbuilt FX processor is a nice bonus. I managed to get a very nice
sound with a couple of SM58's on a vocalist with an acoustic guitar recently.
There are a few caveats, however: The headroom, while adequate, is not as plentiful as
you'll get on a Mackie VLZ or an Allen + Heath - it can be slightly tricky (but certainly
possible) to get a nice hot signal to the mix buss. The inbuilt effects can be a fraction
noisy on the return but probably not anything you'd notice in a live context. The EQ I
find can be a tad honky if you boost the mids but this was probably my own
heavy-handedness. I personally find the lit channel ON button a bit annoying and would
rather just have a mute button a la the Mackie, but it's not really an issue. Also, it's
a "lump in the line" power connector - although the locking nut used to connect to the
mixer is an excellent design and very easy to use in practice.
All in all a
good little desk for the money though - I got mine from Sound Control for £229 by asking
them to match Turnkey's price.
Hope this helps