The possibily to have predefined searches in Allura is appreciated but it shouldn't eliminate the possibility for fast filter selection. That possibility is present in every decent tracker but Allura.
What I mean? There should be some 'Advanced filter' mode which will allow to select some value(s) for each ticket's field in dropdown boxes instead of set all possible combinations in predefined list. In case of LXDE that list may be easily a hundred items long and this will DEFINITELY confuse every user and we end up having no list but having a lot of troubles because every developer will have to learn your filtering syntax and manually enter filter each time. That is a huge regression and inconvenience. Our developers already asked to migrate to another platform but SF.net due to hard-to-use existing tracker. Seing your Allura is even harder to use for developers they will not ask anymore but demand the migration.