Tried to do this today and it has some rather annoying bugs.
First of all, almost all the rewards you get are trophies which require you to type their names in order to be able to delete them. This alone is very tedious as the names of those rewards are all very long and quagganish
But even if you type them correctly it won’t let you delete them. Adding up to some 15 undeleteable trophies in your inv. I luckily saw this early on and swapped to a char I don’t really use a lot after the first 2 but it would be really nice if they were sellable or at least deleteable if it really has to be done by typing in every single one.
Secondly the Twoloop Friendship Bracelet is a bugged quest. In the last part it has 2 quests that pop up and if anyone does the training branch with Aloogwa it will bug out completely. So you pretty much have to prevent others from doing that part to have it succeed :/ http://wiki.guildwars2.com/wiki/Assist_Aloogwa_with_combat_training