x2... I swapped out the ebo jaeger that was in my 50 gallon tank for a 300 watt Hydor inline and couldn't be happier. Even with winter morning room temps around 50 degrees my tank temp stays where I set it. As good as the ebo's are I still had a lot of temperature fluctuation in the winter which is why I decided to try the Hydor. If you are using a canister filter the Hydors are the way to go... I have never read anything bad about them.If you are set up for it, I recommend the Hydor inline heaters.
Only heater I have ever used that NEVER fluctuates.