If you want to have a private and smaller group experience, this is the best option!!
I chose and loved this option better than the other ones because this one is a smaller van (smaller group) and they pick you up at your hotel and drop you off whatever you want (the other tour, you have to meet where they tell you).
Our driver Daniel, was spectacular, very professional, well-spoken English, very knowledgeable, very nice to be around, he was on time for pick up, if we wanted to stop somewhere to see something, he would do it. He explained very well the ins and outs of the excursions, what to bring, what to expect, if you need cash vs card (for the boats in Lake Bled, they only take cash), he stopped at an ATM for us. Our first part of the excursion there were only 3 of us, he took us to lake bled first because he knows it gets busy, when we got there, we had the castle by ourselves, it felt like a literary private excursion.
Overall, very very pleasant experience not only for the beauty of slovenia, but the service made it even better. I’ll recommend this option specially if you have kids, you want a smaller group and if you rather get picket up rather than meet up somewhere.