I bought one of these a long time ago. Sadly, the display on these is a bit too dim for my tastes, but, skipping that - Pebble was bought by Fitbit a while back and consequently, you won’t get any kind of official support on these watches. BUT! They will still continue to work since Pebble issued an update.
Info on Pebble working without cloud support:
There is also an open source movement to support Pebble: