Today I browsed the titles for a while, then I decided to watch a Simpsons episode, exactly "E. Pluribus Wiggum", season 19, episode 10 (wow it's almost 20 years of Simpson's broadcast!) and an excerpt from a '76 Saturday Night Live... with Chevy Chase an John Belushi (I really like those old SNL clips, they're great!)
Well, the viewing experience is good, I have to say - only some glitch here and there in the few starting seconds, but I immedialtely learned that after a reposition at the start, then the playing is smooth and continuous.
In the longer clips you will find some ads, and you can "see when" they will arrive thanks to some marker in the timeline indicator. During these ad shorts you cannot skip forward or pause... but hey, that's fine for me :-). A curiosity: the Viewing applet has this ""lower light" function, that is a little but helpful function: it will darken (but not completely) everything in the browser window except the viewing area. Good idea.
I plan to access more content on Hulu asap, but in my opinion it's a really good service. Thanks, Hulu!!!