Crossfit for an out of shape guy?

Hi guys,

I'm 27 and due to work haven't been really doing any exercise for the past huh... 10 years? Out of the occasional week where I get back to gym till dropping again.

I'm in no way fat, just slightly overweight, but physical conditioning isn't there anymore.

Now, I need to focus on regaining conditioning, is crossfit a good idea or should I first get in some minimum threshold prior to trying? What are the core things to look for when choosing the place to train?

Many thanks! English isn't my primary lang. So apologize for any spelling mistakes