I've had DS Waters services for over 4 years and I just cancelled today. In Texas I had Sierra Springs and never an issue, but after moving to Arizona and getting Sparkletts, it's been a nightmare. They've missed 4 deliveries and delivered the wrong amount of water 2 times, in 3 months. Customer service is okay, they always say the issue is fixed and then no delivery again, but the wait times are insane, over an hour sometimes. The rep when cancelling was extremely rude too.
If you don't believe the massive amount of reviews here, go look at their Facebook. They've turned off the ability to review there because they have so many 1 star reviews. Every comment on their pictures are just people complaining. WORST service ever, I can't believe they're still in business! I searched water delivery services and there are way better, cheaper, and more reliable services out there!
TL;DR: They f*ck*ng suck.