My daughter just had tubes put in and adenoids removed last month (the Friday before Christmas). She didn't have chronic ear infections, but she did have chronic fluid in her ears, causing hearing problems. She had just turned 3yo.
We researched the need to have her adenoids removed by reading medical research articles. (My husband works in medical research, so asking questions and doing our own research is standard procedure for us.) We weren't sure the adenoid removal was necessary, particularly since she wasn't getting chronic infections. This is what we found. For kiddos 3yo and older, having the adenoids removed substantially decreases the chances that she will have to have another set of tubes in the future. So, it will likely reduce the number of operations and the number of times she needs to undergo anesthesia (which seems to be the most dangerous part of the operation). Adenoids also act as reservoirs of bacteria/viruses, so if infections are the issue, it should help reduce the number of infections in the future. The benefits of adenoid removal are only apparent after the kiddo is 3yo. For kiddos younger than 3yo, it's likely they'll only suggest tubes.
I also asked my brother about his son's experience (around 6 or 7yo when he got it done), and my brother said it was a piece of cake and to have it done.
Our experience with the operation. Operation was fast. Our daughter was brought to post-op and was groggy (just waking up). Be prepared. A 3yo is going to be groggy and in a bit of pain. They will be unhappy. Our 3yo is tough, but she was crying in post-op for a while. She didn't like the IV in her hand at all, so they immediately removed that. Because of that, they couldn't give her anti-nausea meds (the anesthesia often causes nausea), so she threw up. She then took a brief nap in my lap. Post-op probably lasted 1 to 1.5 hours. After the crying, barfing, and nap, my daughter insisted on walking out of the hospital on her own and taking a ride in the elevator before leaving. At home, she laid on the couch for an hour or two. After that, she seemed mostly normal. It is a really easy recovery.
Do it. Particularly with the infection/snoring issue. This is not something nutrition or chiropractic is going to "fix."