Revision rhinoplasty may be worth it to you if you are dissatisfied with the appearance of your nose and it is worth the downtime to have it revised. If you decide it is worthwhile to you, then seek out a board-certified plastic surgeon or facial plastic surgeon who specializes in revision rhinoplasty as it is more challenging than most primary rhinoplasties. Review before and after photos of different surgeons' websites. Ask many questions. It may be helpful to seek out a member of The American Society for Aesthetic Plastic Surgery as well as The Rhinoplasty Society.
To say whether or not a rhinoplasty is "worth it" depends on the patient and their objectives. Rhinoplasty is one of the most popular surgeries performed because it can provide balance and harmony of the face. Most patients are very satisfied with their result, however, there are always patients who envisioned their nose differently. Revision rhinoplasty is beneficial to correct small areas to achieve the desired result or to correct an ill-performed rhinoplasty. It is so important to make sure you do your homework before selecting a rhinoplasty surgeon because surgery, especially on your face, is a permanent change. I would recommend starting out at plasticsurgery.org. Here you can select from surgeons who are board certified by the American Board of Plastic Surgery. After that you should narrow down your selection based on their specialty training, reviews and before and after pictures.
The short answer is 70% of people think so afterwards. This is lower than other common cosmetic surgeries like lipo, facelift and blepharoplasty. And the reason is rhinoplasty is the most difficult of all. Its because there are 4 tissues involved, skin, cartilage, bone and mucosa. Each has its own healing process. To maximize your chances of being a successful result, go with a surgeon with experience. Rhinoplasty is hard and unfortunately takes a long time to learn.