I too have one of these vacuums and what I wish Tineco would have supplied is an additional wand that is half the length of the standard version. Often I find that trying to use the standard wand for some cleaning some projects is too awkward because it's too long and conversely, connecting the small brush head directly to the vacuum isn't actually long enough for some projects. Many times I've wished that I could collapse the long wand to half it's length. Dyson too supplies a only a long wand when one half the length would often be a lot more user friendly. I wouldn't mind paying extra for a wand that was half the length of the standard version.
I can appreciate washing the filter but the vacuum comes equipped with a special chamber designed to clean the filter so there is rarely a need to wash it.