Maybe removal of google maps, especially satellite view is the most visible change for all, but what I am really missing is old style maps, previously default, maybe they was a bit slower, but exact and crips clear with reasonable caches icon size,
very usefull list and displayed exact number of caches showed on current map view. You just made a not so good beta map default and completely removed good old map without prior notice, what a shame. At least please let the old maps running as the was. The "new" map is stil in beta/alpha state and very immature! Did you ever zoom out the "new" map? If yes, probably you will notice, that there is no map at all, it is overlapped with the high density of cache icons and you have no idea of location... Until the "new" map will not have a meaningfull settings of density per zoom level and icon size settings, it will remain very immature beta. So again, at least please let the old maps running as the was.
p.s. maybe you should try to close the office for a day and go caching to some foreign city and try to plan that trip on your "new" map using lets say 20-30" lcd as most of geocachers do. Then please answer yourself if it was a pain or a pleasure to do the plan...