I have complained about the HR34 being laggy ever since I got installed in March. sometimes VERY laggy, and buggy. Many posters here get on the CE and make their comments based on that, forgetting they are not on the NR.
In the past 2-3 weeks, I do feel like the HR34 is FINALLY becoming responsive, reaching the level I would have expected before they dared to ship it to non-beta customers, and worthy of being on the flagship unit... of course I'd probably get home and discover that Pandora or YouTube has re-disappeared from my menus

(but that would be a buggy issue, not a laggy issue

)
short version.. this thing was RUSHED out the door by DTV... and the SW is still playing catch-up.. but maybe its finally getting close.