I have a 2500 but don''t have Netflix (but at some point in the future I might give it a shot). It is in the bedroom system and doesn't get used tons (perhaps once a month). I decided to go ahead with it (the update) and have it going on now (I hate when I do use it and then find it needs an update and have to deal with it when it is one of times when I just turned it on to watch something). Thanks to all who shared their experience.
Main System (Integrated AV)- Lumin U1, Modwright LS36.5 DM Preamp, Modwright KWA150SE Amp, EMM Labs DAC 2X (ver. 2), Torus RM-20, Thiel CS 3.7s, 2 Rel Storm III subs
Back-up 1 - HAL MS-2 Music Server, Odyssey Candela Preamp, Bryston 3BST Amp, Meitner MA-1 DAC, 2 Richard Gray cond, Ohm Microwalsh Talls, Rel Strata III sub
Back-up 2 - (Integrated AV) HAL MS-3 Music Server, Sherbourn Pre-1, Emotiva XPA 200 Amp, Teac UD-501 DAC, Vansevers cond, B&W P6s, Rel Q150 sub