Overall it looks like a nice set up, the layout is clean and uncluttered, and it`s easy to understand right away what you offer.
What I don`t see upfront is why this better for me, as a potential user, than setting up something on my PC to do much the same thing .... in other words, what are the pros-cons of your system vs my own PC inventory system?
How reliable is it?
What if your server goes down and I can`t access my area?
What if my internet access is interrupted and I can`t get online at all ( not something you can control, but it may happen sometime, and a user may want to think twice about working online after that ).
What type of security is in place to protect my information?
Many web hosts state on their home page things like guaranteed uptime, security features, etc., which might be something for you to consider doing to create a bit of a comfort level right away.
Website Critique Community
International Society of Curmudgeons