What can you expect to get........bladdered! Did you take a hydrometer reading before pitching the yeast, if you did you can work out who strong it is by taking another reading when you bottle (pre priming) subtract this from the orignial reading and divide by 7.45 to give you a ball park abv. My Example OG 1054 FG 1000 54 / 7.45 = 7.24%
With regard to time it'll take a week to two weeks to finish fermenting, you'll know it's stopped fermenting when the small bubbles stop rising and it starts to look a bit clearer, take a hydro reading that'll tell you.
I'm going to try to leave mine in the bottles for a month, curiosity will kick in though and i'll probably end up having a bottle in two weeks time

It's really rewarding making something nice yourself

Let us know how you get on, when did you kick it off?