I don't know about that particular brand. But, yes, lube makes a big difference for me. I produce less natural lubrication sometimes due to medication. I was kind of embarrassed about carrying a little bottle of lube around in my bag starting in my 20's - afraid those poor male egos would be traumatized thinking they weren't turning me on. But without lube sex for me would often hurt & that's no fun for anyone.
Also, some toys have a ton of drag. Even if I'm at a point where my natural lubrication would be fine for sex, it may not be fine for all my toys.