This is going to be an essay, so bear wth me :wink2:
I did KGB Deals when I just opened my salon and was fairly new to lash extensions. Having next to zero client base and willing to speed up my lash application I decided to go ahead.
The majority of voucher holders were after deal only, but I asked every single one to write a review about my salon (of course I would send them a link to my profile on a review website) and many did write 5 star reviews. This has helped me to get more clients for other treatments.
A few bought additional services and homecare products on the day they redeemed vouchers. A few still are coming for their regular infills on the set I applied initially.
My application speed and quality improved dramatically (of course, after so much practise) and I was able to build a good portfolio of my work. I use most of these pictures for my current advertising.
After a few months I ran a secon deal for waxing. It was a fixed amount value at a greatly reduced price. I think it was a great mistake. These custmers were very different from my lash customers. Firstly, they would make sure that the areas they are willing to wax would fit into voucher value and they would not pay a single pound extra. Hardly anyone booked any extra treatments.
To sum up, I would say that it is good thing to promote your new skills or a new venture. Also, it certainly helped that I have received 70% of the amount upfront. I ensured that I booked only a certain amount of voucher clients per day, at the time that suits me (usually morning) as I wanted to be available to full-price clients and walk-ins.
Even with my bad second deal experience, I would still run another deal, but for something totally new only.