Some manufacturers send their skis well waxed but essentially most are just putting enough wax onto the bases to protect them in shipping, storage and the first couple of days of skiing.
There are many good brands of wax and some are cheaper than others: Solda, Purl are a couple that are more economically priced and work well.
You will always do better with a temp/ condition specific wax than with a general wax but most people cannot be bothered with the pfaff.
You should put as much wax into the bases as possible before skiing on them in order to protect them and allow for the 'just one more day/ or too tired to wax' factor when skiing.
I would get a good all condition or base prep wax (in a quantity that allows several waxes) and wax the skis at least three times with this.
Hot wax and scrape until wax is coming off clean - this removes any dust or oils etc that were picked up in transit.
Waxing: brush bases (or wipe with lint free cloth), crayon on the wax (touch to iron, rub onto base) which uses less wax, and iron in until the top sheet at tip and tail is warm to touch. Stand against wall in warmish room and let completely cool as wax will continue to absorb.
Once completely cool (cold - pref the next day), scrape bases, brush and wax again.
For example my new ski routine would be;
Evening 1: Hot wax and scrape to clean, then wax with base prep layer 1, leave to cool, go and watch some sport on TV.
Morning 2: Scrape, brush and wax with base prep layer 2, leave to cool go to work.
Evening 2: Scrape, brush and wax with base prep layer 3, leave to cool, go to pub with mates.
Morning 3: Scrape, brush and wax with super cold (ie hard) wax layer 1, leave to cool, go to work.
Evening 3: Scrape, brush and wax with super cold (ie hard) wax layer 1, leave to cool, take wife out to dinner.
Morning 4: Scrape, brush and wax with super cold (ie hard) wax layer 2, leave to cool, go to work.
Evening 4: Scrape, brush and wax with all purpose/ or cold (blue) wax layer 1 (this is the wax you intend to ski on), leave to cool, watch the hockey playoffs.
Morning 5: Scrape, brush and wax with all purpose/ or cold (blue) wax layer 2, dribble some wax on the entire edges, leave to cool.
Evening 5: Come home, admire handi-work, post achievement on forum so that we can all say 'well done', place in a cool, dry, dark place until next ski season.
Next season, pull skis out of storage, admire handi-work again, pack in Sportube for trip to Alta, arrive, scrape skis (do not leave wax on the hotel room carpet), brush out structure, look forward to awesome days skiing the next day.
The rub on waxes are okay for a condition change that you did not anticipate (normally best for wetter snow) as the flouro can help with the wetter snow. I think that with Alta in Feb you are going to be okay with blue and green (Swix) as it will either be cold or really cold and you are fine with a hydrocarbon wax with new dry snow.
Hope that helps, good luck and have fun.