They are holding up fine. But I wouldn't recommend bifold for the master... the clicking sound when it closes very loud.
They are inside out because my door folds outwards instead of inwards (like normal people). I wanted to maximize the size inside so my doors pull open outwards.
Btw I would recommend the wooden bifold instead I think much more chio. But Edmund didn't give me the option
Like the new HDB ones also better looking lor. And they don't have bottom tracks... so don't have the clicking sound which is mad loud. He didn't warn me and I would say he wouldn't recommend no bottom track also lah cus he alre thinks the 2 panel is very easy to spoil. But I don't feel it's flimsy or what lah.
I just don't like tracks.
hdb one:
http://i65.tinypic.com/xqb6ac.jpg