any 4 wheelers?

My 99 has crossed the 100k mark and has served me well. I'm thinking that maybe this summer coming up, I'd like to give her a new posture. So I'm searching for info or feedback on the various suspension lifts available these days. Most likely I'll go with a 6" kit, since that's what's mostly out there. But I'd like to hear from anyone who's done this to their truck. Mine's a standard cab sportside Z-71, so if you have a similar vehicle, I'd really like to hear your thoughts. Thanks in advance.