-intuitive and familiar layout
-i love their grouping of all messages
-no addons etc needed for functionality. everything built in.
-easy to setup
-worried it will not be developed in future with opera presto's death.
-when i delete all trash or move spam to trash and erase, sometimes the counter (which tells you how many messages etc are in a folder) is incorrect. it seems to sometimes not delete all the messages or something ???
unusually low ratings for such a worthy email program. is thunderbird better? perhaps (opinions may vary - ???) ... but that doesn't diminish this product.