Honestly I just want speeds better than the crappy "3G" called EVDO, AT&T and T-Mobile 3G UMTS/HSPA has always offered faster 3G or at least the possibility of it...with 3G EVDO I never saw higher than 2.8Mbps standing next to a cell tower with fiber backhaul in the middle of the night.....LTE for Verizon in my mind is like finally catching up with AT&T's HSPA, I don't have an LTE iPhone tell later today but I use my sisters phones and we are about 800meters from a cell tower...the speeds are about 17mbps downlink on a BAD day and 30mbps on a good day, I live in one of the Markets (Syracuse, NY)....our ADSL is like 6mbps....a shame I don't have unlimited data anymore!

In all honesty the speed increase for me now will probably just be a nice convienent feature and when my crappy ADSL goes down it will be much nicer than tethering off my iPhone 4.
As for effective use of spectrum....its vital that they have more LTE on the AWS 1700MHz band....700MHz is great for range and indoor use but capacity wise in major areas not so much. Its no different then the previous technology using 1900 and 850/800MHz (or 2100/900MHz in Europe and other parts) for capacity reasons. I've been in busy areas where a carrier only has 850MHz and while you get reception you often don't get speed or reliability if there is a large venue with allot of people, same goes for the high frequency bands, 1900MHz only was killer when I was in Wisconsin (US Cellular only allows verizon 1900MHz with almost no 800MHz), I could not make any calls indoors, I had to temporarily re-route all my MMS via WiFi and verizon email...I just hope the spectrum is effectively used, I'd hate to be stuck on 1700MHz/2100MHz in a building with thick walls and dodgy signal strength. As CDMA2000 fades refarming of the existing 1900MHz and 800MHz spectrum for LTE may occure....not 100% sure current all the current iPhones can pick up the spectrum VZW has set up for CDMA in an LTE fashion or how/when/if LTE will support voice and what not.