There is no indication or check for items being out, and restaurants don't have seem to have the ability to alter the online order if you paid via app so if you order something and arrive to find it out you have to refuse the entire order, accept whatever substitute you can get, or get short changed. Additionaly there is an issue with password reset where if you try to click the password reset link from email while app is installed it will being up app still logged out with no way to interact.