I have used them about five times now and are happy to use them.

Epecially if I want an hotel which isn't part of a chain where I can earn points such as Hilton, Marriott, etc. Because, in general you only earn hotel points if you book directly via the hotel chain website.

I booked Marriott twice via Hotelslash. Once I didn't get Marriott points, the second time I received a few Marriott points. So it's hit or miss.

In general they have very competitive prices, and what stands out, is that for the majority of prices, it's fully refundable. I already booked an hotel weeks in advance to secure the price, and just a few days before travel, I switched to an even cheaper non-refundable price. Actually, you can't change your booking with them, but you have to book again and cancel the old reservation.

Never had any issues so far with overbooking, or payment. And refunds are generally done within a week or so.

A cool feature they have is that you can submit your orginal booking (even it was not via Hotelslash) and they track price drops. Worked for me a few times!

Happy customer so far here!