Found the noise a little distracting for my application, but the quality and compact size are great.
M
Mazz
Quick, cheap and noisy.
Ideal for a quick try out prototype. Rather noisy, but hay it is cheap and light. Replaced with solarbotics planetary for the real work. It did burn out after a few days of heavy use but that's only to be expected.
B
Bill Morrison
Good
This little unit is just perfect for my line of hobby building scratch built model boats, and use it for a radar unit, running it at 3 volts was a little fast ,but running it with a treble A. battery it runs perfect , also ran it on test and it was still running after 8 hours amazing. the only drawback is the connecting wires are far too short, and the drive shaft be a little longer apart from that a nice little unit. I will be ordering some more soon.