I manage a network of about 150 users and still growing. We have been using RB192 for more than four years now. It has started to fail. We have to restart it at least once everyday so we are planning on buying another one.
I need suggestions on which RB will best suit our environment. These are some of our considerations:
VPN capability
Higher processor speed and RAM (RB192 runs at 300MHz with 32MB RAM)
rb2011uas-2hdin if your are on the budget - still quite considerable upgrade to rb192 you are using now
rb493g - if you need 9 gbit ports and/or multiple wlan cards (2.4/5 GHZ)
rb1100ah if you need a realy strong cpu and more ram - you will need to add wireles seperately
rb1100ahx2 if you need hardware ipsec acceleration and more cpu power than rb1100ah - you will need to add wireles seperately
I do not consider cloudcore router as a solution for production enviroment since routeros6 is not yet finished and many of features that would benefit from multicore operations are not yet implemented/tested/bug free also no hardware ipsec acceleration for now - will be in the future (when?). Might take another year at this tempo before ccr it is ready. And also you will need to add wireless seperately (rb711ua-2hnd, rb711g-5hnd, rb435g+wlan cards, …)