I've played both Lone Tree and Western Skies a few times when we used to do a Winter Desert Storm as well. They don't make the Sept DS rota ....only play them in winter because they were reasonablly priced for that time of year.
both are ok but not that good, surprised they hold the qualifiers there but perhaps with it being peak season and green fees $250 everywhere else none of the good courses want to give theirs up for a day