I know there are fair enough ways to work around the following issue, but something that has been a bit frustrating with all of the Forerunner models I've had (including the 245), is the inability when using statute miles as a recording format to set a specific distance that doesn't go in set steps of .5 (eg if wanting to set 0.37 miles for 600m reps the closest is 0.35 or 0.4). Which for being specific, ends up being more or less than you are looking for! I appreciate that this is really only an issue when doing intervals that are not so common and not a deal breaker.
As I said there are ways to work around it (change to metric measurements or set up specific intervals on connect and send to the watch) but as a basic thing when wanting to program intervals quickly that you would like to do and have the fullest control of from the watch, well it is a bit annoying.
Unless there's a feature on the watch I've not described above to do this, it would be good to see smaller unit increment/full adjustment when setting interval distances on the watch in future.
Correct me if I'm wrong on the above though.