If I didn't already have three sets in my cupboard, along with a brace of the XT equivalents, then I'd be all over this, but you can have too much of a good thing.
Unless you really want your room cleared while you're there, leaving the "do not disturb"/"do not clean" hanger on the door means that nobody will (should) go in.
The website looks pretty unpolished, with the Ts&Cs and Accessibility Statement just the website templates. If this is legit then they need better website designers!
Just make sure you find someone that can actually teach you all of that as part of a structured curriculum, and not just someone that wants to teach people to play songs. I've made that mistake before and it was very frustrating
Record yourself playing along to songs, then play it back without the background music. It'll probably be a bit of an eye-opener in terms of highlighting any quirks or flaws in your technique or timing, and give you things to work on.