I use it for 28 years
I bought a catalog without trying other (rare instrument, absent from the shops, so it's normal)
Inspired by MUSSER M55, as strong, smaller and lighter, easier to carry. Excellent sound. Adjusting engine speed knob linear faster and intuitive than the Musser do me any harm.
Two (minor) complaint: A444 granted (the trend at the time), but not as embarrassing as it sounds, tending towards the standard A442, and 2Hz nobody notices them if they do not prevent ... (more on can do in A442 or A440 retune if needed) and leaves of equal size bass / treble, so a smaller scale in the lower register over + big vibration, but the sound is well balanced.
Excellent value for money. (M55 is a € 6,000 new ...)
I would do the same choice without hesitation