The pro of using Radiesse is that my checks are full and smile lines have completely disappeared.
The con is my doctor injected under my eyes and I developed a lump under the left eye. It is very noticeable and unattractive. No one notices how great the rest of the face looks because of the one under eye lump.
I prefer Restylane. It doesn't last as long but the results are almost guranteed to look great.