We purchased a Grand Design Reflection 5th wheel last year and we love it.
Issues so far:
Bathroom door required some adjusting to get it to stay latched. Fixed myself.
Discovered factory installed battery disconnect does not kill power to everything. Battery drained very quickly in storage. Fixed by adding my own disconnect to kill all power.
Discovered that rear of 5th wheel is inaccesible when the passanger side slide is in. Our fault as we fell in love with the floor plan while all slides were out. Just never thought about putting the slides in. The only time it is a problem is when we overnight I must park where putting out that one slide is not an issue. This is why the battery draining was an issue and required a seperate disconnect.
The Reflection is step below the Solutide but as I said my wife and I have been very happy with our purchase.
Dave