I will try this again.  I received the vacuum about a week ago. First off, the delivery company is spot on. From England to California in under a week was amazing. Days ahead of the proposed delivery date. Additional parts were the same- in under a week. The instructions are O.K., but not great. I strongly recommend that you video a  full description of the instructions. The build of the vacuum is solid- DO NOT CHANGE THIS! I hate paying premium prices for flimsy products. That is HATE, not dislike. The power is very good, and makes this fun little beast a joy to handle. I gather you are designing a cleaner head that deals with hair- excellent! The white is nice and neutral, but a couple of other colors would be nice. I agree that an extra battery would be a wise addition. I like the maneuverability of the vacuum, and that the weight is lower on the frame of the machine. Very wise.  Overall, I am a big supporter of your machine. If you stay true to your original plan- to create a machine which lasts much longer than traditional machines, and only gets better, as you make changes, I will remain a supporter of your product.