Older model
This appears to be the "old" design before WP redesigned their wash system. Thus it also has the slightly higher usage profile. But nothing horrific. These machines are decent enough build, perform pretty well and look nice enough IMO. For drying she'll probably have to try around a bit. Sanitize on its own might create great drying results if the door is opened. Otherwise heated dry might be needed. Though using heated dry very much is said to shorten the machine life due to the higher strain on the electronics and the heater. Though that varrys greatly, some use heated dry all the time and have no issues, others get burned out heaters or stuck relays quickly. One thing she should be aware of is the usage of all cycles. All normal cycles should use about the same (about 2.5 up to 5 gallons depending on sensing). However the PowerBlast cycle will use about 9gal regardless and more often than not will not be needed. Both normal and auto use sensing for soil and load size, so they will adapt. More soul means more water changes and more wash time, so not prerinsing is key there. Quick is fixed at about 5gal. That cycle does not soil Sense and is generally done in an hour. It prewashes (once or twice I don't remember), washes, double rinses and then basically ends there, so no drying unless heated dry is selected. Opening the door immediately after cycle end will allow for flash drying though. And that cycle should handle most not to dried on stuff well. People recommend running the hot water at the sink before starting to get hot water to the machine from the start. With the quick cycle I'd recommend that as well. However normal and auto should sense incoming water temp and adapt, so that might not be needed IMO. For general use, the default Auto cycle should do most of the work. The quick cycle is great as long as you immediately open the door at the end of the cycle. Oh and make sure she runs a machine clean cycle now and then. The grinder and screen clean themselves mostly. A few people however had theirs clogg after a couple of years requiring disassembly of the pump system for cleaning. A Power Blast cycle with just detergent and no dishes once or twice a year should reduce the risk of that.