Most comprehensive Acoustic floor unit available

I've been using this unit for several years now in a live 2000 seat venue (over 100 gigs). I have tried a lot of different boxes to get some good reverb, a little chorus occasionally, some good delay, a tuner, and a top quality DI box. I switched from a Lexicon G2 rack unit to this. I think the Lexicon had better sounds, but this is more portable. This is a order of magnitude above the zoom or boss offerings.
It is absolutely critical to set up the input and output levels on this unit correctly or you will get noise. "This is not a plug in and go" unit out of the box. You will need to spend some time with it tweaking its settings to your guitar. For example, you can set up one of the outputs for headphone levels and the other for DI levels. I had to wire my own cable to go from 1/4inch stereo to xlr to use it this way, but it sounds WAY better than house passive DI boxes.
I wish it had a physical DI out, but you can (and I do) use the 1/4 inch out for this with a cable to convert. The unit is heavy and well built, but I did have one problem with a switch button coming loose. I had to open it up in order to properly re-tighten it. I'm not crazy about the user interface, but once I got it set up the way I liked it, I don't have to go in there. The tuner is very accurate, and I am pretty picky about that. I wish this init was a little more flat (not as tall). If something else comes out that can do what I need and is smaller, I will go for it. So this syste is not everything I want, but it is the closest thing available.

tc electronic g natural

Easy to use. Good effects. Chorus and delays are nice and smooth. Tremolo I love. But. The unit is way too noisy for what it is and some of the patches kick in more noise as well. The tuner is crap, bounces all over the joint. I like the easy selections and editing is simple.

G-Natural by T.C. Electronics

There is not much available in regards to effects pedals for Acoustic Guitarists. I have been using a trio of pedals in the last few years for my gigs (Boss AD-8, BOSS-Sterro Chorus and a Boss- EQ). I also own a Pandora acoustic effects pedal by Korg. I figured it would be worth the gamble to purchase the G-Natural.
The owners manual is worthless and has errors in it. Basically when I got it I started pressing buttons in order to figure it out. Once you spend a lot of time doing this it becomes easy to use (but before that its a real pain) (anything is easy to use once you know how to use it).

Several of the effects on the unit I would never use; and several are very noisy. I tried every effect with a martin d35 and a fishman solo pa.
I found going up and down the banks a pain as two switches need to be pressed down at the same time, but they are two far apart from each other so I have to turn the unit sideways to make it easier.

The Comp settings usually made the guitar distorted as well.
Although there is MIDI; there is no mention anywhere of what functions of this unit can be controlled by MIDI. The manual said use the "Encoders" to change settings. No mention anywhere of what these were. (I found out later after watching a video on TC Elect site that the encoders are labeled edit buttons) Obviously whomever wrote the manual for this box never actually used it.

The tuner is completely useless as another reviewer found.

If this unit was around the price I think its worth (maybe around $300) then I would have given it 5 stars. But I think the korg pandora box has better effects (although too small to be used at live gigs) with a drum machine. I think this box is way over priced for what you get, there is no volume on the box, which means I still would have to stop playing to go to my fishman to turn it up or down. They should have provided a mute and volume (you can mute if you start the tuner)

So its not that I am unhappy with it, but I think its over priced by double, and I do not think the effects sound any better on my acoustic's than any electric guitar pedals...

The unit does have a lot of lights, more lights than any pedal I have ever seen; so at least it looks really cool. Its too big to fit on a pedal board, it uses a standard plug a amp uses so you can't chain it with other pedals which means more outlet requirements on the stage.

If you purchase this beware: TURN OFF mic pre-amp if you have one on your amp.

I think I paid for hype, and I would not associate the word "Fantastic" to this unit, just an "IT's Ok, but I wish there was something better"