Debating whether to upgrade from 2 HR22's to the Genie. I realize there's a $3 month charge for whole home DVR but besides having more hard drive space to record shows, the ability to watch them in any room, and PIP on the main TV, are there any other benefits, like faster channel changing or faster TV Apps? And these still do not scan for locals, right, you still only get what the AM21's database allows?