Ive not experienced any problems with mine, how ever I know of 3 Mani's that have cracked this year, all repaired and 2 have cracked again. I also know of a downpipe that snapped clean in half and turned out the welds hadn't penetrated the metal fully? (Im not a welder so couldnt confirm), also heard of an inlet weeping on a couple of the seem welds. :/ J