Alone, with little time I tried it, and I'm happy.
- Effective (more than me)
- Bigger than I thought, but small enough to fit almost anywhere
- No need to move furniture to clean underneath (sheep under the bed)
- Quieter than a conventional vacuum cleaner
drawbacks:
- Sometimes he loses a little of what it collects (as a conventional vacuum cleaner)
- Must be emptied each time (it is small, so its container too)
Overall, I think this is more than just a gimmick, and I do not regret at all. Hopefully the price is democratized by some against, although powerful vacuum cleaners are in the same price