Haven't used the ones you described, but had a really bad experience with Jalli ("the heater with a 48 hour lifespan"). If you are looking for a higher wattage titanium heater, I can recommend Catalina Aquarium titanium heaters without hesitation. These are available from ebay or, I believe they have their own website. I have used these for approx. 2 years without any failure and they are very accurate. Also, the temp probe is built into the heater unit, so you don't have to string a separate probe.