The the theremin is not for everyone. Those who connect, will play it for life.

Bob Moog has been making them for a long long time and it shows in the simplicity and reliability of the circuitry, the quality of construction and the ease of operation.

I'm a former accordion player and have noticed that the coordination required to play the theremin is the same. Think about it--right had controls the melody, left had the volume.

Feature:
Quite good. There are two knobs that, when used together, allow some slight changes in tonality. Subtle but there. I love the 3/8" rod antennae. They look substantial and are attractive. The instrument can be ordered from various sources in a variety of finishes, including black, white, and several wood stain colors.

Quality:
The build seems excellent to me. Most Moog products throughout the company's history have been built with pride and passion.

Value:
One might wish they were still making the Etherwave Pro. It had a more linear response, and looked really cool. Lots of people are playing them on YouTube. But it's history, and used ones are commanding in the $6000 range! For the price, if you like the brass-like sonority (I didn't, preferring the more string-like or vocal sound of the B3) it's a complete winner at this price. But a good, playable unit can be had for half this.

Desirability:
Like every Moog product, it does what it does with sturdiness, style, elegance and that Moog charm we've known since the '70''s. The Moog legacy is being carried on proudly, though the world is poorer for the loss of Dr. Bob.

Sound:
Theremins have different sounds. Other review statements notwithstanding, this is neither the only theremin on the market, nor the least expensive. Bob Moog was most instrumental (pun gently intended) in bringing the theremin back to public consciousness, and the Etherwave models are quite playable, though non-linear in pitch response. What distinguishes them from others is the more brass-like sound. Others (soundslikeburns, for instance) have the more string/vocal sonority. It's all about preference.

Ease of Use:
Theremin is not an easy instrument to play, but it's a serious one. Expect it to take practice. Avail yourself of some of the online lessons on YouTube by Thomas Grillo. Peter Pringle and Moog offer instructional DVDs. Many theremin players are self-taught. Don't kid yourself, be patient and prepared to suck while you learn the ropes. No frets, no keys, nothing to guide you but sense memory and practice, practice, practice.

Support:
I haven't used it personally, but Moog support is fabled.

Overall:
From what I understand, people keep these for a long time. Why not? Sturdy build, attractive unit, good performance for the price.

An excellent tool for pitch recognition but also a legitimate instrument for making music. Personally, I think it should be regarded as a instrument for generating melody and not a sound effect of screech generator. Perhaps this makes me a prude or something, but Leon Theremin hoped that the device would be used to carry a melody, a classical one perhaps, but a melody none the less.

Having accompaniment is important. Keyboard support can give a Theremin player real support in timing and intonation. I

It's supa' blastin ' ! It's all i can say !
I have played on it and from then i'm nuts !
I only dream to have one !

Feature:
I don't know, as I dont have one, though I would like to.

Sound:
I think it sounds wonderful, like something between a trumpet, a human voice and a radio being tuned. amazing!