Enjoy your time. I have heard mostly positive things from the people that I have talked to that have gone. I think its a great opportunity to be able to go.
Take care.
Congrats man, I have moved from a few firms, and I have to say not once has it been a bad switch. I would imagin there will be a few other perks to leaving that atmosphere. So enjoy this time as you will be back to work again in no time.