I was looking to repair a Windows 10 boot file failure and paid for their software. The Neosmart website states their software "is guaranteed to work", that they "provide 1-on-1 email support", and the product has "a 100% satisfaction guaranteed or its free" policy.
None of these things are true. The software could not fix the problem at all. The company never responded to four attempts to contact them for both support and a refund request.
Google says their office is permanently closed; I wish I'd checked all this first!
Do not give them any money.