Weakness and vibes yes, but
There really is nothing wrong with it. I have one on my 93', I swapped out my HP D30 with a 2001 TJ D30, for 4.10 gears and bigger joints.
I have a 6" lift, no noticeable vibes problems, but I also have to run 4 degrees of caster. With all LP Front axles, they are harder to align after lifting, because you want to maintain a decent pinion angle.
The question is, what do you want to do with it? Add lockers regear, all are very doable. Just be aware that it's a D30 and a LP one at that. You may want to keep your spending low and spend it latter on a HP D44.