Oh and my first day as a fulltime indie dev was April 14th so I got to spend plenty of time refreshing that stats page (all day long, every day!). On April 9th I submitted it to Steam Greenlight and it was Greenlit in the batch of May 14th some 35 days later. Since last October I've been building a game called Guild of Dungeoneering which is a kind of reverse-roguelike with a pen-on-graph-paper aesthetic. Lets ignore for now what this rash of games is going to do for your game's release (hint: find an audience outside Steam) and instead address the question ' How hard is it to get through Greenlight in 2014?'.
Fortunately in January Valve started ramping up the number of games they were Greenlighting and right now they are accepting a batch of 75 games every two weeks. Even with the launch of Greenlight, their crowdsourced vetting service, it was extremely difficult as recently as last September. Steam's almost-monopoly causes some real problems, with gamers often refusing to buy games from you directly, saying 'I'd buy it if it was on Steam'. A couple of years ago it was basically impossible as an indie dev to get onto Steam.