Instruct: Classify a review as either positive or negative.
Query: poor quality, but it looks nice.

I have owned this unit for 14 months and used it fairly often. The unit looks very good and feels solid. However, all the voltage setting were the same for AGM, Wet and Gel,... and they were too high at 15.1 volts while the recommended voltages on batteries were either 14,4 or 14,8,.. there is no ability to adjust,.. this would probably be even worse for Gel Cells. These AGM and Gell batteries are very sensitive to voltage, as the electrolyte can be dried up by over heating.After about 6 months of use, the cooling fan started making a horrible noise and the vibrations keep it from running at top speed.Now, in the past week the top charging voltage has dropped from 15.1 to 12.9 when set to 10 amps and 13.5v when set to 40 amps. This is not enough to fully charge the Battery before the charger turns off and says that the battery is "Full."Perhaps I have a defective unit from the start,.. but this has been very frustrating.