We gave one project to this company,

We gave one project to this company,
It delivered very late
And it was not even covering all the cases.
And too much difficult to update .
If you have given project then always check that all cases are working and ask for live demo with your given scenarios and test cases.
Their ML codes are not for all problem.
They basically provide standard codes which arr available on internet.
They do not cover all deep cases.
Make sure to check properly with your given live testcases and then only complete funding milestone.