Mannamead is posh indeed! I would avoid Bere Ferrers because pretty as it is, as toggle says it's a pain in the arse to get to, even though you can see Plymouth just across the river! V frustrating. Actually because of geography, there are lots of areas around Plymouth that are quite tricky to get to. See also Turnchapel and anywhere near Mount Edgcumbe and Torpoint, unless you're happy to rely on a ferry all the time. Plymouth is spreading north and east at speed, and many of those areas are new and quite soulless. But probably quite safe. If you wanted the sticks, some of the areas around Yelverton are nice but close enough to be an easy commute. I have a soft spot for Tavi but it's a bit of a trek, especially in the winter when it snows on the moors. I reckon Mutley and Stoke are the best, but if I could afford to live on the Barbican I probably would. Best of luck!!!