@Mateja23 "Superhost" status is determined by an algorithm set to register precisely the parameters shown to you in your dashboard. Neither you nor anyone working for Airbnb controls whether you accomplish it, but the fact is, it's utterly hollow as an aspiration because it has no benefits beyond a little $100 coupon once a year and a few orange pixels on your profile.
The "PLUS" program is being phased out completely, but it was merely a way of Airbnb trying to break into the luxury market by treating hosts' properties like inventory they could fully control, but at the hosts' expense. By most accounts, it was a terrible idea.
You have a nice flat in a lovely city, and all your guests so far have reviewed it very well. These are perfectly fine things to aspire to continuing and building on while "cacking" (???) your apartment. Maybe at some point the algorithm will call you a "Superhost," which may be a nice ego boost but little else - it means nothing at all to most guests, who choose where to stay based on their budget, preferred location, and amenities - not on all these stupid bells and whistles! If your competitors are "less well-equipped" than you, surely a discerning guest will recognize that when browsing listings, so there's no need to get on your knees for a thumb on the scale.