I've got a Bikelug T300c (the c is for collapsible)
I got it from the factory this week, fully reconditioned, for £380 inc spare wheel...that was 30 quid more than it would have been normally but I had to get next day delivery before 9am to do a specific and time critical job.....
It's a nice unit....came with four tiedown ratchets free.
Easy to rig up, feels nice and sturdy apart from the silly plate steel ramp thing that buckled on first use....the trailer's got a breaking neck though which was handy....latch it onto the car, pull the pins and angle the deck down....even without the silly ramp, it went up easily.
One man operation was difficult..as it was my first attempt I bottled out and grabbed a passing builder to help, but with a strap adjusted to length to hook on one handed, it could be done..it's something I've got to practice in the next week or two.
I did manage to unload it on my own though, so the principle's the same
It was nice and stable behind the car on the motorway, even with my 1150Adv on board.....it's rated to 350kg IIRC...If it was legal to do 70 whilst towing I'd say it was very stable at that speed but obviously it's not, so I won't say it
Oh yeah, and the company were good to deal with
HTH
PS I searched for bloody hours to find foldaway trailers..there only seem to be two established makes, the Bikelug and the Foldaway range ...both have several models but TBH, unless you really need the foldaway function, it might be worth sticking to the far more available and much cheaper rigid trailers, and dismantle them in between use...quite a few of them will stand on their ends so they can bee stood up against a garage wall .
HTH