Feature:
Autoscan frequencies, or manual select. AA Batteries last a long time, and rechargeables last quite long, too.

Quality:
Robust. Metal. Short, though antenna. Metal 1/8" plug with retaining screw ring to set guitar cord to transmitter pack (solid). Perfect record in live use from our last tour. Clear. Range. Long battery life. Kiss your 9 volt pile goodbye.

Value:
You get what you pay for. Not the least expensive, but (nearly) flawless in on stage use. See "pilot freq." notes below. My next wireless will be other units like this.

Desirability:
Very good ergonomics / use / size. The best wireless unit I've used.

Sound:
Clear, no drop outs. Good range.

Support:
On this unit, support not used, but on previous Senn unit the support was iffy on a tough technical issue - no one had an answer, no further help was offered. No complaints on the use of the unit - this is the third Senn unit used, all have been as advertised.

Overall:
ONE issue - the "pilot" frequency can fool itself and cancel if the reciever antennas are too close together in a rack. This pilot freq is the "auto hush" circuit that keeps an unused transmitter church quiet when the guitar is not transmitting. Watch your antenna placement (relative to each other), and all is well. Senn gents - please update your manual - this is important for frustrated non-techies.

Feature:
Built like a tank -METAL!! not plastic. I love the option rack mount kit. The wireless pack has a really difficult clip to use. The good news is, once it is one, there's no way it is falling off. The clip is reversable, too. Very comfortable to wear, easy access to the mute switch when switch guitars. I personally think the 3 foot cable is a bit much.

Quality:
I've only had for two weeks and used it twice in live performances, but absolutely no problems. It is built like a tank. Should last a very long time, especially with the secure rack mount

Desirability:
The bouncing signal indicator is cool if you're into that. I 'm just looking for something that works without dropouts.

Sound:
For me, this is a close to a wired sound as you can get. It has adjustable input sensitivity which is great when playing with hot humbucking, hi ouput pickups and other guitars that don't have such high output.

Support:
Didn't use support

Overall:
If the manual was better, I'd give it a ten.

Quality:
What can I say. Its a Sennhizer

Sound:
I have this unit and love it I ave had no droped signels the tones are good and strong. I won be with out it.

Ease of Use:
You can use it right out of box or can setup yourself. You will have to read the manual.

Support:
Haven't needed any.

Overall:
I would not be with out it.