Its all relative, define easy. I have been in Computers for 20 years and yes most programs are easy to a point, most things are occasionally named differently, or a different way of doing things, but, depending on your
computer knowledge it may also be easy for you.
Easy is a frequently bounded around word. I think we would need more info from you.
You may have 20 people who use Flexi daily and yes to them its easy... was it easy for them to learn... possibly, but their background may have been different to yours. others may hate Flexi. Personally I find it very easy to use. I also think signgo is very easy and I looked at it a while ago
www.signgo.com it may be worth downloading it and trying it and seeing how you get on with it.