I don't think you will get an acceptable answer on here. Especially without giving details of your product. That being said, the only way you can know for sure

I don't think you will get an acceptable answer on here. Especially without giving details of your product. That being said, the only way you can know for sure is to test it with real customers (your target customers). Invalidate your assumptions! First determine what an acceptable conversion rate is. Then I would start with a comprehensive feature tour and good copy. Show the customer how you are going to make their life easier. Drive everything through that page. Track your conversion rate. Even if your conversion rate is acceptable, offer a short trial - track your conversion rate. tweak, test, track...