I have had a few U1's - nice little knives. But, the edges of the frame were too sharp for my taste, so I never really got much carry out of them. Eventually I sold them on.
I also had an A1 for a very short while. The blade kept chipping on me - even though the hardest thing I did to it was light batoning. I ended up shipping it to Fällkniven, together with a letter explaining the issue and requesting a replacement - they simply resharpened the knife and returned it, no note, no answer to my letter. First time I used it after that, the edge chipped again - I then sold it on, as a defective knife (ie. with a huge loss), to a collector who did not plan to use it.
I can't really recommend any Fällkniven knife - if you get a faulty one; expect sub par customer service.
