I am considering buying an airless sprayer after watching the info-commerical from Wagner. I would like to know if airless spraying is a good option for deck spraying and in house spraying of walls. Also can anyone tell me if Wagner products are worth buying. Wagner seems to have many models on the market. Is one model better than the other. I have read that Wanger tends to "spit" and you may have to roll afterwards. Something I do not want to do. The idea of going airless is to get away from rolling. Any comments you have related to airless spraying would be appreciated.