I've got the late model Infuser with the temp adjust function. Picked it up from Bing Lee for $385 - shop around and you could probably get it for a bit cheaper. It''s been a huge improvement over my depressurized Saeco Poemia and I'm having a heap of fun experimenting and learning how to pull better shots. The steam wand is does a fairly decent job as well. Agree with the lightweight tamper but I just lean on it a bit more.
It's almost idiot proof so makes for a fantastic entry level machine that comes with everything you need to get serious with making excellent coffee.