Just sharing my personal experience. I used to believe that chiropractic doesn't help with my back pain, until I met my MD friend and he said go ahead and take the experience, nothing to risk as well.

So, I went. 

Package or not it was fine with me. What was interesting was the during the first visit they took a picture of me standing, facing-front and sideway and stored it (I gave them permission of course); doctors then did a detailed examination and explained how my current lifestyle (long hours office worker) and poor posture could have led to current body condition.

It sounded reasonable so I went with the first treatment, it was super awkward haha, and I felt mildly constraints on my back for a couple of hours. I went back to the same clinic every alternate weeks for 3 months. At the end of three month, they did another check up and review session.

Honestly speaking, I did feel good with regular sessions of adjustments. What was really intriguing was the body posture I have compared to 3 months ago was VERY Different. No slouching, balanced shoulder and I asked myself honestly was it a placebo effect? I knew I was honest and not to kid myself, spending for placebo effect. It did help with my body aching conditions, sleep conditions, and sinus condition. (I guess all are inter-related anyway.)

I go for Mid-Valley one (KIRO Lounge) when I am in KL, and when I travel to Singapore, I go to Sinaran Drive ( http://chiropractic.sg) there.