First off, congratulations on being funded, but a number of red flags popped into my head when I was reading your information, and the number you received for funding.

1. Did you have positive sales/user traction? 2. Is your product B2B? 3. Do you feel there are a number of products like yours already in the market that isn't big? 4. Was there a true need to involve investors that you couldn't make up in sales?

In my honest opinion, I think you gave away too much equity. 45% is a lot for only 100K, and with ideals for growth in mind as well. That means you increase your revenue exponentially to offset the need for additional funding in the future, or hope for the next round of investing that investors only want a small chunk. Slightly doubtful once they look at how much you initially gave up.