The girlfriend and I just purchased the medium/3 person today. It'll be a few weeks before it makes it into the local REI though. Out the door with a 20% coupons and some REI dividends it was roughly $1,150.
For us, the reason to go with the Yakima was based on a few key features and our specific light duty intended use.
1st: it can easily be mounted on my Tacoma (for generic camping off Forrest roads and mild trips) and on the rare occasion, moved over to her RAV4 easily (long highway based road trips) and can easily be secured to the cross bars with a lock (though admittedly it's not theft proof).
2nd: something I haven't yet seen mentioned: Limited lifetime warranty from Yakima paired with a 365 day satisfaction/defect return policy with REI. Also, REI is accessible most places we go so easy in-store support fits our needs well.
3rd: the three person is really just a comfortable size 2 person for us....well, me. (6'1" 220, she's 5'5" and notably lighter) and out of the tents we've explore (but not owned), it felt the best size without excess (or lack of room as with the Skyrise small/2 person).
When it comes in and we get it mounted, I'll join with Christophe in offering some first hand feedback.
- Jake