Yes. PPC marketing like every other marketing tool is not an elixir. It has to be used in the right amount, in the right mix with other tools, at the right places which a good PPC ads company can only tell you after careful analysis of your current standing.
You need to keep the following factors in mind:
Cost: PPC marketing is simple. As long as you keep pumping in money, it will produce results. Also, some ad placements can be very expensive. Choosing the right placement is therefore very important.
Revenue leakage: PPC platforms follow a certain technique/algorithm, which means your precious revenue could be going waste without even your knowledge.
Search volumes: PPC ads, on search engines depends on serach volumes amongst many other things. If the user doesn’t key in the keyword in your ad, your ad will simply not appear.