I'm 6'3" (190cm) and have an almost 2" lift at the front, little less at the back (to level the JK)....at that height, I have to climb up into the JK just a little bit.....ie, park one cheek on the side of the seat then scoot across after I lift my other leg in.
If you're vertically challenged, even at 2" you'll be climbing into the driver's seat.
Don't forget, theres also the "getting out" to consider....