It's impossible to tell, some people take opiates once and hate them so they never use them again. Some people fall in love with them after the first use, i fall into the latter category. Just be aware that if you really like them then you are going to be at serious risk for addiction if you continue to use them with any frequency.
For your first time you should maybe only take 5 of those pills totaling 40mg of codeine and 2500mg of acetaminophen. You have to be very careful with this pills if you want to take anymore than that. These pills are potentially lethal when taken in quantities of 8 pills and up. The codeine (which is the smaller number in 8/500) in these pills is not the lethal ingredient, it's the acetaminophen (represents the 500 in 8/500).
Acetaminophen can be lethal in doses of 4000mg or more per day, some people can handle more, some people less. The way to get around this if you must take more pills is through a cold water extraction. Acetaminophen is not very soluble in cold water but codeine is very soluble, so basically you thoroughly dissolve the pills in cold water. Then filter out the solid gunk that's left floating around, keep the slightly cloudy water and toss out all the gunk that's left in the filter.