The injections were mildly painful, the results were immediate. The nasolabial folds did not hold the gel too long, the marionette lines are still filled, I can feel the gel, and it's been 9 months since the injection date.
The nurse who did the injection did not inject proportionately to the natural face asymmetry thus leaving one fold noticeably less filled than needed. I ended up coming back and demanding to have this fixed. They filled the less-filled fold with restylane. For about three weeks after the injections, pimples would form around the filled areas.