Stay away from inline heaters b/c of failure rates?

[bradleyheathhays]

I'm setting up a 125 using 2 eheim canisters and just now as I was researching inline heaters I came across advice to avoid them b/c their failure rates are higher than other types. Is this true? And is it enough of a bother that I should look into hang ons or submersibles? I'd really like to keep the heater out of the tank if at all possible.

 

[bradleyheathhays]

Also I've been told if I go with one of these Hydor inlines I'll want to use a digital temp controller to guard against overheating. The ReefKeeper Lite Basic setup has been suggested for around $120. If I go this route spending $120 for a temp controller (plus a whole lot of other programmable functions) should I look at any other controller other than this ReefKeeper for around the same price?