The reason that you didn't get any answers is probably because you didn't ask a very good question. What do you mean by "will it work"?
RSS seems to be falling out of fashion. Twitter is taking over. Sure, there are still people out there using RSS, but probably not in such huge numbers. If you have got an existing RSS feed then it may be worth keeping it going but I wouldn't generally bother starting one unless you've got a good reason to. If you've got a feed going, it may be worth putting a marker on the URLs that you use in the RSS so that you can check your logs and see how many people actually click on them, as to whether it's still worth your effort.
If you mean "will an RSS feed magic me to the top of Google" then the answer is almost certainly 'no'. Google should be able to find every page on your site anyway, and if your navigation and general marketing is up to scratch then you're unlikely to get a whole load of SEO benefit from your RSS feed.