Not sure who the product manager is at Google Analytics Premium now, but buyer beware:
- sampling is real and happens quite often, if you have a lot of traffic
- interface has become buggier
If you haven’t switched yet, no real point. Don’t let the resellers bamboozle you into buying it. Lots of ‘great features’, but the wheels spin out when the rubber meets the road. Email me for your specific use case and I’ll be glad to provide my 2 cents on whether the migration is worth it.