The EA6500 looks pretty typical for a newer Linksys product - but it`s super-sized. It is massive compared to the E4200 series and could in fact scare small children. This extra size is required for all the extra internal antennae to handle the dual-band operations. This should help with antennae and signal strength for starters and help the plastic housing to remain cooler as 802.11ac routers can get a little toasty. . ."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips