To cut a long story short: Yes, Lucene (Solr/ElasticSearch) is another moving part. And you have to know, that I hate adding moving parts to my system. I do anything to avoid it. But, if you want to support a search within your application that goes a little beyond a simple (simple!) full-text-search then you need Lucene. I promise you, when you have got used to it, you never (never!) gonna miss it again.
So the simple recommendation is: Try it out! You will not regret it.
