If you are solo mining and against the massively sizable odds against finding a block, you get one - yes you get the full reward + all tx fees in it and - whatever fee the service (pool) you use charges. Key point is that as I said depending on your hash rate and above all - Luck - you find the block within an hour or more likely years or possibly NEVER.

Using PPLNS with the much higher hash rate a pool provides you will get paid far sooner and certainly more often. Sure you split the rewards. So what - you are at least making and on a much more regular basis.