Feature:
The inability to mix delay with reverb is royal pain in the arse. The wah is not progressive enough in shift from low to high position. It's a pedal low on features but that's what makes so usable compared to most competitors

Quality:
It's a VERY sturdy pedal. I don't the parameters are as durable as the ones found on me-50 and the gt series but unless kicked or stomped on severaly, it will last a long time. Defo a keeper. The quality is still far highers than the competition

Value:
Could be a little cheaper

Sound:
I think it's a good pedal if you only use/need the basic mod + delay effect. the sounds are good for the price (zoom & digitech cheap multi fx are no match sound wise but prob better features) with the exception of the distortion section: Overdrive & blues are very similar and banal. They're not very reaslitic in the way that it's possible to have as much gain as the metal distortion option... i dont believe a natural sounding overdrive could ever rival with a metal zone in the real world.. but they're still usable in moderation. The wah is not bad. I use it quite a lot. The main issue is the transition between high and low positions: Not smooth at all. But if you play with it for a while you'll get use to it and adjust yourself so that it becomes normal-ish. The volume pedal does a perfect job at adjusting the volume. ;) I hook the me-20 to my epiphone valve junior head powering a 4x12 cab in my bedroom and it makes the most perfect practice amp i've had. Seriously, it's extremely satisfying. I would definitely do small gigs with that set up if everything was mic'ed.

Ease of Use:
It's VERY easy to handle. A quick glance at the instructions and you're ready to conquer all soundscapes.

Support:
never had to use them

Overall:
If you dont already own a higher range multi fx. You should definitely consider this me-20.

Feature:
There are plenty of settings and effects to play with. The variety of options is incredible. The pedal easily switches from volume to wah. I love that it can run on battery power (6 AA) or from the AC adaptor (not included), so it is very portable.

Quality:
It is very solid. I have been using mine for over a year and it is still in great condition. The knobs have a good amount of resistance, so you can be precise when turning them. Everything is like it was when I bought it.

Value:
I am very happy with it. The number of effects for the price is amazing. That being said, do not expect amazing, studio-quality effects. If you have a specific sound in mind, you would be better off getting a specific pedal. I play a variety of different styles, and this pedal lets me switch from clean to distorted easily. Buying all the effects I want to use seperately would be expensive and it would take up much more room.

Desirability:
It looks kind of plain, to be honest. That doesn't really matter though, because it sits on the floor and I am the only one who can see it. Sound is more important than looks, and it delivers.

Sound:
The sound quality is good overall. The metal and fuzz settings could be better, but the blues and overdrive make up for that. After some experimentation, I got very satisfactory tones.

Ease of Use:
I was playing it right out of the box. The format is simple and the knobs and pedals are clearly labeled. You could spend a lot of time perfecting the settings if you wanted to, but the straight forward design lets you avoid the tweaking and get straight to playing.

Support:
Haven't needed it.

Overall:
I am very satisfied with this pedal. If it was stolen, I would replace it. Both the quality and the quantity of the effects it contains makes it a very useful part of my setup.

Feature:
all the features are great, i talked about it in the sound section.

Quality:
Ummmm its BOSS guys. they build these things like tanks.

Value:
great value. i fully recommend this to anyone on a budget.

Desirability:
idk i guess it looks pretty cool.

Sound:
the sound is incredible on all the modulations. it took me a while to find a distortion soft enough, i just switched to the blues setting(which is amazing.) my only complaint is the wah pedal, its a little choppy. other than that great sound.

Ease of Use:
Soooooooo easy to use. it took me only 30 minutes to get awesome sound.

Support:
never had to use them.

Overall:
this is an awesome pedal. my only recommendation is you might want to get a seperate wah pedal if you want top of the line.