Need help kind of quickly. I bought a Wagner 315 power sprayer last night. I wanted to spend dollars in the most versatile way in painting tools yet still hit my intended immediate purpose of painting interior walls with latex(whole house). Now I am affaid to break out my new sprayer due to the reviews and problems other users have with their Wagners. It seems that a Wagner spends it's life being clogged, cleaned, and generally fussed about. My question is, was my pruchase worth my money? Can I expect to get good use vs down time from my sprayer? Is there another product that would make quick work out of painting, is affordable and faster than the ol' roller which I am not fond of, yet still be used for other projects? Lastly, does the Wagner work better with some types of paints than others?