At the end of the day we could argue this until we are blue in the face. It is upto the OP to decide the right boat for them.
Personally i dont see that sleeping on a bow rider is really an option. Cooking and using the toilet facilities would be interesting as well once you have added a fridge, cooker and overnight gear aboard, there really wont be much room for manouvre as it were.
A "real" cruiser offers more choices, more privacy and also offers the cockpit which is roomy enough for when you have guests. Hey you can even have guests stay over night relatively comfortably and there is no need for roughing it or camping aboard. You have proper and comfortable beds. No need to be making berths up either there is a fixed double berth that is large and roomy.
And the S23 is a lovely pocket cruiser, but the OP is never going to cruise and will stay onboard once or twice a year.
The S23 would most defo be on my "look at" list if I wanted to cruise the South Coast and have regular weekends away, but why chuck away all that amazing day space IF you want to day boat? I simply can't get my head around that, it doesn't appear to make sense?
I can only guess that you haven't been aboard a larger bow rider.
Not my favourite brand, but the Maxum 2400SD (Sun Deck?) offers a tremendous amount of boat with tidy used ones being around £20K. That is just an example.
Sat outside my office is the most well thought out Sea Ray 260 Sundeck. Not in the equation as it is brand new, but it has 3 showers, a really big heads (sit down, but you can swing the preverbial cat, TONNES of storage a wet bar, stunning cockpit with plenty of seating options and with the canvas package it is really weekendable. It really is a superb day boat with once a year overnighting thrown in.
Of course every boat is a compromise and OP may well choose the S23 is right for him, but it would be a shame for him to choose before he really has all the facts.