You are both right!
I truly must say that the latest trees of Walli are not "just another tree". Instead, they are gorgeous creations with amazing detail, and that everyone should give them a try.
I too have hundreds of tree models at my disposal, but the ones I end up using 99% of the time, are those ones from Walli. The reason why is plain open to see for everyone: it's quality. It's realism. It's detail. That's all I have to say :-)
Cheers,
Frank