I find this application perfectly reliable. I don't know what else you have in your menubar (I have default folder, stufit magic menu, the versiontracker search icon, pgp, clamav scanner, etc.) I have not seen weatherpop "disappear". It has not crashed on updating. It always shows up on login. It has given whatever temperature the source gives, and of course the sources are easily modifiable. I prefer weatherunderground. Weatherpop works in various cities in Germany, etc. It's a great app, and I like the visuals. I think it's a four star app but I'm giving it five because the one-star reviews are so ridiculous.