I have 3 HV machines. Designer I, Designer Diamond & the Sapphire. They are all used for different reasons. The Designer I was my first one & it has become my work horse. I use the Diamond for embroidery only & the Sapphire I take to classes. I have the best dealer in the nation and he keeps my machines in great working order. I have never had any major issue/problems with any of them.
I almost forgot to mention I have an HV long arm quilter. My husband loves it.