Don't ever buy TGI Friday's Piña Colada. It's pre-mixed, including rum, in a bottle. It's horrible. It's very, very, very, VERY, VERY sweet. Blah! I took a sip and poured the whole lot down the drain. Horrible.
To clear things up, this is not what I drank at mom's house. What I meant in my earlier post was that I'd had some sort of piña colada at mom's house and hoped to have that same taste experience. TGI Friday's Piña Coloda was NOT it! I think mom used that frozen Bacardi piña colada mix.