After the initial launch, Roombelt didn't have any long-standing users. A few people registered every month but none of them really stayed with the product.
Eventually, in October, one guy was determined enough to give Roombelt a try to send me several bug reports. It turned out that after using it for a few days in a real-life scenario the product just stopped working. This was most probably the reason why others didn't stick to it for longer.
After a few weeks of bug fixing, my first user was happy. If it works for this guy it will work for others as well, I thought. And I was right! Other companies started using Roombelt and they shared a lot of very positive feedback with me.