I am a fan of bluetooth mainly for the reason that it is a standard, and is aware of other bluetooth and wifi devices. As such, it behaves fairly well in an environment with those devices. Start adding in other 2.4 GHZ RF devices like phones and RF keyboards and you stand a greater chance of experiencing interference problems.
Unfortunately, many manufacturers have avoided addressing (or allowing the customers to address) Bluetooth's 'problems' by switching to proprietary 2.4 GHz RF transmission protocols. Logitech is one mfg who has done this.
The sad thing is, Bluetooth is actually a good format for mice and keyboards. The update rate can be up to 125 Hz, which, while below insane gamer standards, actually still works very well for gaming. I know, I use two different bluetooth mice for gaming.
The problem is most bluetooth dongles don't come with a connector for a real dipole antenna, and are often not mounted in a proper location to receive the signal. Apparently most people don't recognize that plugging their BT dongle into the back of a steel computer will reduce the signal. Hence, people get cranky because their mouse doesn't work right. So the mfg's simply brute-forced the solution with a high-power proprietary dongle.
Well, guess what? High-power bluetooth dongles
are available, and work absolutely perfect. You just have to know that buying one will make your bluetooth devices work like a dream.