First Spectrum analyzer. The Java mechanism needs an exeption for every AP on our system. That's potentially around 80 ap's and groing by a few every year. It sucks and it very time consuming.
Second, the browser admin tool is always flaky. One day IE works best, then it's Firefox then Chrome. The Mikrotik Winbox is a MUCH nicer mechanism, doesn't change everytime I turn around and has a really nice search function built in. 10x better than browser solutiions and I'll bet more secure too.