Dyson first for us. We chose this model for its reduced footprint and ease of use. It stands alone and therefore one can easily store it in a corner. No need to put it back in the cupboard after use. We were afraid of the noise, as is often the criticism that is to Dyson, but we were pleasantly surprised. Yes, it is noisy, but much whether we expected. The tank is not very big and it will think to empty it often enough but the system is well designed, making it quick and easy emptying of the tank. In the end, the only point on which we are a little more doubtful is the telescopic arm. It is very useful to draw on the floor or the ceiling, but cons, it is much less convenient to suck halfway.