I had one for 3 years and 110,000 miles.
Never again.
Great for the bikes in the back seat area, fast and fun at times but my main problem was the very stiff suspension and firm ride, ok if your not doing the high miles that I am but not fun mile after mile.
I did get the range topper with the lower profile tyres thrown in, so if you are going to get one by one with thicker rubber on smaller rims and you might find it helps.
And it wasn’t as economical as the book said as well.
As for the rear bar I quite liked it as at night it normally hid the following cars head lights.