Need some advice regarding PE

Hi guys,

I have a few questions, some of which I tried searching through this forum (around 7 pages of topics) but couldn't find enough answers to give me a consolidated idea.

I was recently offered a once in a lifetime (at least I think so) opportunity to work at a new start-up PE fund thats been around for a around two yrs. The company said that I could work there for a few months for free and if they like me they'll take me on full-time.

My question is, I graduated a few years back and haven't had relevant experience in IB, although I've done a few stints in other groups. I'm really interested in this position and I think I'd be crazy not to take it. My question is:
1.) If I decide after a few months I don't want to stay, how valid does it make me as a candidate for other PE firms with less than 1/2 yr experience.
2.) If I decide to take a full year with the firm, does it make me a valid candidate for other funds? Will one year in PE that make up for my lack of a two year IB base?

Next, I was wondering, I know this question might come across as insanely stupid since like every bank, I'm sure its different for each PE Fund. But in GENERAL, what are the hours like? I heard someone say that PE is like IBD on steroids, yet at the same time I read online here that the hours are actually a lot less, ie. 60 hrs a week. Also, for most of you guys, what time does your day begin? I'd like to get a general consensus and get multiple answers from individuals in the industry with regards to the hours they work. (obviously they fluctuate when there are big deadlines etc.), but on average what are hours like and how extreme can they get?

lastly, if I'm working at an LBO firm, how likely is it for someone to switch to VC or Mezz? I'm guessing it would be "easier" in a sense for lower levels since you have commited as much time to one area yet? Or am I wrong with this assumption.

Thanks ahead of time!