Let me try to analyze this hand. An analysis from the viewpoint of a beginner.
1. Its values are a bit soft
2. The honours are concentrated in the same suits.
This analysis is purely about what I think so I dont know if its correct or not. Its good because I am writing in the B/I forum, so nobody will say 'I am stating the obvious' or 'This is completely wrong'
1. You downgrade your hand a lot when partner has a singleton in you High-card-concentrated suit.
2. If your p has a singleton in your loser suit, you will upgrade your hand a lot because your partner is likely to have some high cards to protect your Queens and Jacks.
Its different from AXX AXX AXXX AXX because this hand works well against any short in partner's hand...
That's why I find 2NT an interesting bid because it helps me to find out parnter's shortness immediately, and I know how to react.
I am not saying 2NT is the right bid, but isn't it more important knowing what you are looking for, rather than only bidding according to textbooks?
Um...2NT has drawbacks. I can think of 2
1. 1S-2C-2D/2H-2S even serves a better purpose. Everything partner bids later shows his hand. And knowing that he has a 4 card suit is also important! (2NT shows 5-4-3-1 / 5-3-4-1 usually, and 3C shows 5-1-4-3 / 5-4-1-3) But 1S-2C-3C is not so clear...if I bid 3S (textbk bid?) I dont know what 4D is. In this case can 1S-2C-3C-3D help me check whether if p has H high cards?
2. Even if the auction goes 1S-2N-3D (shortness), there is no guarantee you can make slam. Your partner still needs something extra. But this tells me that if I have some more points in H/C I will definitely bid 2NT, despite my 3 card trump support.