I used my PRO-150 (black lightweight one) for the 2nd time yesterday.
My only issue is that it only runs on high and as such, it runs for 20 minutes before all of the water is used up and it shuts itself off.
I actually filled the water tank just above the "max" line yesterday. Same thing happened as it did the 1st time - it runs really hot for 20 min and then you get the low water alarm beep and it shuts down.
I started to remove the tank and add more water to steam longer but it was
really hot to the touch
I would prefer to have a low setting so that I could steam for a longer period of time rather than just really hot for 15-20 minutes.
I may get an extra pair of oven mits to I can add more water to the tank to go longer.
I've been using distilled water since the water here is extremely hard.
I still like it though and love how my hair feels afterwards