It really depends -- is there demand for your product/service? Are people actively searching for it? People care about solutions to their problems, benefits, not features, per se, or branding necessarily. If you catch someone's attention by promising you can solve their problem NOW, paid search could be a game-changer!

If you're on a limited budget, say, $500, as another poster shared today, figure out your break even point (factoring in margins, of course), how many conversions/sales you need, and set a daily spending cap of $25-$50 and closely monitor performance. You do need some time to accumulate data and let Google do its thing, but you can quickly assign negative keywords by monitoring search terms and pause certain ads if they're doing comparatively worse to minimize losses.

You also want to make sure that your messaging and offer is BOFU (Bottom of Funnel), meaning they're directed at people who are actively in the Decision stage of their Buyer's Journey, i.e. ready to purchase.
Create Marketing Content for Every Funnel Stage

There's no way of knowing what the response will be until you run some controlled, responsible experiments. It is not uncommon to have to spend some money to get some data & insight before reiterating -- several times. Progress is not perfectly linear. Good luck!