I had a colleague who was suckered into Halfords bars on a new car. One canoe on = bent bars.
I had another colleague who bought Skoda bars with her new car. One canoe on, not even tightended this time, and they bent, popping the roof mount off.
Meanwhile I have a set of Thule bars, that regularly carry three canoes or four bikes, or a sofa and two mates(!) occasionally. They are now 10 years old. And still fine.
I also had to buy an extra bike rack for them on the way to hols – bought the only one the shop had in stock (Exodus). One bit fell off on the first journey. It just tooke me 10 mins to re-fit it to a roof bar. Meanwhile my 7-8 year old Thule’s are fine, and took about 30 seconds.
Thule everytime. It is worth it.