This is the second possible reply for your opponent if he smashes the shuttle.
One basic disadvantage is that, Lifts often allow your opponent smash continuously, whereby if there is a leak in your defence, then your opponent may earn his point. There is also an advantage to you when you actually Lift the shuttle to his possible smash is that your opponent gets tired when
The smashes repeatedly.
For your lift to be effective, kindly lift the shuttle to get good height and depth.
The Lift is an alternative to a block at the net, as it may surprise your opponent who tends to move forward quickly so that they can play a tight spinning net shot or even tap the shuttle for a winner.
If you always defend with blocks to the net, then your opponent can anticipate these and move in faster. so, surprise him by playing the Lift so that he will face the difficulty of changing direction to move backwards. Either he may play a weak shot or may not reach to the shuttle at all if the Lift has a good depth.
If your opponent smashes and tends to move forwards, you have to play a flatter lift, anyway your are taking a risk as you give your opponent less time to recover will probably intercept your flat lift with a winning smash.
If your opponent is quick and athletic and ready to cover both lift and block responses, then avoid playing flat lifts.
Add more pressure to the Movement of your opponent and variation to your Lifts after your opponent smashes. Lifts are usually best directed away from him i.e., if he smashes straight, lift cross court and if he smashes cross court, lift straight.