I think it's valuable and it provides a landing page for other campaigns (like paid Facebook/Google ads) you might be doing. I'm in technology though so it's an easier lift for me to create but using Wix and other tools like that the learning curve has come down greatly.
The big benefits of your own site is getting commission free bookings and SEO traffic directly to your property and not all the properties around you like you get with the OTAs. SEO is hard though...it's more art then science and it takes time and arguably you will never even reach page 1 or 2 for the keywords you want if you are in a very saturated area. SEO on your site is not a set it and forget thing either, so if you are serious about it, you either need to teach yourself and be disciplined about it or just higher somebody for a few hundred bucks a month to do it for you.
So, long story short, it's good to have an accompanying site for your properties, there are valuable uses for it and you are running a business and every business should have a website in this day and age, but don't expect it to delivery any sort of significant traffic or bookings unless you are in non-saturated STR market.
Best of luck!