There are multiple stages to a social security disability case. The initial stage is after you file the application. Almost everyone is denied at this level, that's not unusual. You would get a letter of the denial, which informs you that you have 60 days to appeal the decision. In many states, the next stage is "reconsideration", which is basically someone else within the Social Security Administration taking a second look at the case. If you are denied again at this stage, you will get another denial letter, again giving you 60 days to appeal, and at that point, request a hearing in front of an Administrative Law Judge (ALJ). If your state doesn't have the reconsideration stage, then your appeal would be to request an hearing.
As someone who has handled hundreds of such hearings, I think they are a good thing. Unlike your case being just a number on a caseworker's desk, you are now going to get to appear before a judge. You'll get to explain about why you are disabled and no longer can work, and your lawyer can ask you questions that showcase your limitations (for example, they may ask you how many hours a day you can do housework, or what the heaviest item you can lift is, how far you can walk without stopping, etc). The downside to a hearing is that in between the denial and the hearing is usually a long wait -typically around a year or more. In some areas, especially larger metropolitan areas, it could be closer to a year and a half or two years. That's because there's a backlog of cases, and not enough judges to hear them all. While waiting for your hearing, it is important to continue with your treatment, and to update your medical records accordingly.
After the hearing, the judge may make an immediate decision, or more commonly, will take the matter under advisement, and a decision will be rendered in approximately 60-90 days. So, while yes, hearings aren't a bad thing, the disability application process by itself is SLOW, and it can take a very long time to get approved. The good news is that you can be eligible for back payments if your case is approved.
If you need clarification or additional information, please reply, and I'll be happy to assist you further. Thank you.