I didn't see the need for 3 different speeds (minimum, auto and maximum) as I usually prefer to work at maximum speed anyway. I only own one cordless vacuum with suction power equivalent to a corded vacuum and I see the need for multiple settings in this one to save battery, but 350w isn't powerful enough to ensure all 3 settings. Instead of keeping it low or on auto, I just put mine on high. The 2500mAh lithium battery is decent but not great so I couldn't finish vacuuming the whole house at max suction when the battery died. It's also more moderately loud than quiet. I like a solid and large wall mount, although most standard vacuums I own have a very small wall mount or an uncomfortable floor pedestal. This is a cordless wall mounted vacuum wand, large, reliable and easy to install, and can hold 2 extra accessories, saving us some space. I also like that I can plug the charger directly into the wall mount rather than having to plug and unplug the actual battery. The retail price is around $210, which is quite expensive for this vacuum, but it came with a substantial coupon. ($70 off) at the time of writing this review and around $140 after the coupon, the price is more comparable to the average vacuum cleaner currently on the market with slightly better suction power. 2 batteries but I only have one and I think you can buy extra batteries separately.