Take this as advice since you claim to be a "newb"....NEVER use Wix for professional web design or development jobs.
But back to your question..according to Google, those pages will still be crawled as long as you adhere to their guidelines.
Now in my opinion, if a URL contains any character other than a "-" in between words or a "?" to generate products dynamically in your shopping cart, then it's not a good URL.
However, we've all seen websites rank for keywords that don't even contain the targeted keyword on the page. But if you're target keywords are very non-competitive, sometimes having just the target keyword in the page title is all you need.
I'm sure most here on Moz would agree that you're better off moving to a CMS and/or framework of some kind (WordPress, Drupal, Sitecore, etc.) from here on out.
I would never want my real estate client to have to use a URL like this "/real-estate#!543-second-avenue/is8ls" on advertisements, listings, and signs. Also, how would they directly point any phone leads to specific pages on the website? Sure you could create nice and clean 301 redirects to those pages but it will be tough to manage and quite frankly it's pointless. Their are platforms available such as WordPress that are easier to set up and manage depending on how complex you want to be.
So, my solution is to move away from Wix. And if that is not an option due to time (which it seems like it is for this project), then I would be on the phone with Wix, on their forums, in their online community talking and learning from everyone I can to make sure that your website is optimized for SEO and that their system doesn't get your pages neglected in Google due to URL structure.
I wish you the best of luck!