The balcony is worth it in my opinion...I also use my balcony a lot...some people don't. The problem with the PG is that it is SO much more expensive to bump up to a balcony. If you have the money, do it!

The butler, in my opinion, doesn't really do that much. I am not being negative about the butlers. It's just that on Radisson you can have what you want when you want it WITHOUT the butler...beteen the cabin steward/s and room service you aren't left wanting for much. I think the only time you might really want/need a buter is if you plan on doing a lot of entertaining in your cabin.