Mathieu M. on "Booking system"

Is it good for my needs ?

Probably. As bad as it sounds the only person that can really answer that question is you. It does look like it will do the job, but you'd need to test it out for yourself to see if it suits your needs.

That goes for any other pluign too. Even though they all od roughyl the same thing, there's always little differences that can make them more of less usefull depending on your own requirements.

Are there some people who test it ?

The plugin that you've linked to has over 30,000 installs listed, so that's a pretty good user test base. ;)

Well, 400€ for a plugin, it's not a simple choice... ;)

The one that you've linked too is free. The paid version may offer more features you might or might not need.