Short answer: yes, when the offer is specific, time-boxed and aimed at someone local who has not tried you yet. Open-ended discounts to existing regulars mostly cost margin.
The offers that work. A first-visit offer, an offer tied to your slow day, a bundle that raises the ticket, or something free with a minimum spend. Each one either brings a new person in or moves demand to when you need it.
The offers that quietly lose money. A standing percentage off with no end date, redeemed mostly by people who were coming anyway. That is not marketing, it is a price cut.
Why member-only matters. A public coupon is a discount. A member-only deal is a reason to join, a reason to feel like an insider, and a way to reach people who have already told us they live here. The redemption is also a signal: you can see which offers actually move people.
Raffles work differently and are worth trying. A coupon converts someone already deciding. A raffle creates interest before anyone is deciding, and gets your name shared. We can help set one up.
Where the plans fit. Posting member deals starts at Small Business. If deals become a real channel for you, Professional Services puts them in front of more people through stronger placement. See current plan prices.
How to test properly: run one offer, on one slow day, for one month, and count redemptions. One clean test beats five overlapping offers you cannot read.