The durability of these butterfly houses seems to be a bit hit and miss. I have one and I bought others for my sister and my mother-in-law. While theirs still both look fairly good, mine has faded and warped quite badly and the lovely butterfly symbol on the front has cracked and peeled away. Even the little viewing window has become opaque.
I am afraid to say also that none of them has attracted any butterflies to move in...
Its a lovely idea and we have all now left them up for around 3 years in the hope that this year the box will be weathered and natural enough for a passing butterfly to think its a des-res....but no luck so far. :(
Looks pretty in the garden though!