Beginner here, torn between the OpenTheremin 4.5, LostVolts V4 and Burns.

I'm in the process of choosing my first Theremin and the much recommended, much beloved Etherwave is not in my budget right now, (Also really hard to find online with international shipping. I'm in SE Asia). I want something that is decent enough to learn proper techniques on that would translate well when changing to a better instrument (As opposed to a bad gear that I have to unlearn everything upon an upgrade). And when it comes to budget Theremins, the Burns, the OpenTheremin, and the LostVolts seem to be the most visible of the bunch. For the people who've played them, how do they compare to each other and what would you recommend?

"And when it comes to budget Theremins, the Burns, the OpenTheremin, and the LostVolts seem to be the most visible of the bunch. For the people who've played them, how do they compare to each other and what would you recommend?"  - RollingApple

I haven't played any of them, but if it were me I'd go with the OpenTheremin.  Just about every player owns one.