I purchased a Flight TUS35 soprano from Thomann last year, having not seen or played them before. I was curious considering the low price and Fluke/Flea-like construction, and Flight seems to get some glowing reviews. It's a very nicely constructed, wonderful sounding instrument that was utterly unplayable. Due to the action and very poor intonation. Yes, the saddle is replaceable, however the flaws could not be fixed by adjusting the saddle. The primary causes were that the neck angle places the strings too low to the soundboard, the bridge is too high to allow for a saddle to be lowered enough, and furthermore the bridge itself was too close to the fingerboard. These flaws mean that the saddle cannot be lowered enough, nor compensated enough to ever get into a ballpark respectable action or intonation. The bridge cannot be relocated easily, because even if its glue joint could be undone without much trouble (I have no idea what glue is used, being plastic bonded to plywood), it's actually also screwed on... from the inside, with three small hidden Phillips screws. Presumably before the soundboard is glued to the body. The easiest way to access the screws would be to drill three holes in the back to allow a screwdriver to get to them. And even after moving the bridge back perhaps 3/16" to allow for a saddle that can be adjusted for intonation, you'd also have to shave it down for action.
Which is kind of what I did. I removed the saddle completely. Shaved down the area before the saddle where the strings would normally be suspended over for clearance. The strings now rest directly on the bridge, where they emerge from the anchoring slots. It now plays reasonably. But jeeze, what a hack! Such a shame, because it's solidly constructed and sounds quite nice.
Now I know this was a cheap uke, but seriously, a Waterman would do better off the shelf.
There seem to be a surprising number of all plastic ukes out there, with brands that I can't find much info on. Kmise, BugsGear, etc.