Pucon-Ski Centre (Villarrica-Pucon) deserves not being too much demanding on infrastructure. 2 lifts are completely off-duty, 2 others do not work during spring time. 60% of slopes are really for the beginners. I would say that there is opportunity to develop the slopes much more than it's done today. Most of the lifts are slow and quite old.
On the other side, to compensate all of these cons, I still recommend the place and will return as many times as I can. It is a great ski center in South America to go with a family (small kids, teenagers and grandparents included). It is a safe place, not crowded at all but with enough people to make it interesting for most social ages, long runs to learn or just talk while skiing, amazing views and very decent doses of adrenaline if you want to hike top to the summit. Pucon (Villarrica-Pucon) infrastructure is planned for crowded summers so during winter (Chileans just don’t go there) you may not have problems to find good accommodations and really good restaurants.