Is there anyone that has any experience with Daikin Mcquay. They make GSHP that sounds very similar to the WaterFurnace 7 series. Variable speed compressor, fan and circulating pumps. In the pictures, it even looks like the WaterFurnace. But it sells for about half of what the 7 series goes for. So, I'm asking if you get what you pay for, or is this actually a good unit?