I would agree on the interior - the Elan looks comfy while the Pogo is spartan. For the closing wardrobes/doors, I guess it may bother some but I think it's OK. Upwind performance would be interesting to see. Polars only tell you so much so first hand experience is critical.
Btw - Congrats on the 350, looks like a very nice boat. I haven't sailed Croatian waters (but I will!!), but it looks like a good option for stomping grounds.