Summary: We have had the Sebo D4 for 3 years. I hate this vacuum. I bought it because it had a long electrical cord and hose. The hard surface head is small. I can't find an after market head that is large and will go on the Sebo hose. If you have a whole house of hardwood and tile like I do, the head is way too small. Pulling this thing around is like herding cats. You have to hold the hose close to the machine with one hand while you vacuum with the other.