I have gone through 3 hoovers in the last 2 years, a dyson, a morphy richards pets hoover and a vax pet hoover, they all work great for the first 6 months then they seem to lose suction even though I empty and clean then regular. I've heard henrys are virtually indestructable but are they any good at picking up dog hair? And boy does my dog molt!!!!! Also would you recommend the Henry xtra with airobrush and the reusable zipped bags?