Absolutely. I have been prayed for when I had the flu, and as the person (my husband) was praying for me, I actually felt a weight leave my body. I was totally, instantly fine.
I also believe that I have been healed many many times although it was more of a progressive one.
I have also been in conferences where I saw people healed (and knew they were not plants). I felt the power of the Lord for healing in the room. It felt like a weight was settling on me also.
And I have been used while praying for many people and there was instant relief for them (sore knees, breathing problems, sore arms, etc.). I also felt a power flowing from me and knew that Jesus was using my hands to touch them.
I have also prayed for others and nothing happened.
Jesus said that we would do the same works that He did. I'm still learning that it is a lot of moving "with Him" through discernment. Sometimes I just KNOW He wants to heal at the moment. Many times there is more of a "knowing" that the sick person needs to be counseled. Many other issues are being dealt with such as bitterness, anger, unforgiveness, etc. and they want an instant fix instead of dealing with underlying problems.