I just bought three for my new tank setup so I hope they rock. I'll let you know when I'm up and running (will be three or four weeks). Ask me again then if I forget. I am not too impressed with their supposed accuracy - they say +-1 F on the box whereas a visi-therm or an ebojager is supposedly accurate to +-.5 F. But maybe the Titanium manufacturers are just being more honest. I'm sick of glass heaters so I'm trying the Titanium ones.
I've been running mine about a year. Excellent heaters. However, I have two issues with them. The LCD controller box gets hot, mine has deformed a bit from the heat. Secondly, it needs a tighter knob for the heat adjustment. Your shirt sleeve rubbing it is enough to turn the knob. On several occasions I had the knob turn by accident. Out of habbit I have to keep checking them after working near them. My father accidently hit one looking at something else and the knob went to 94*F.