How well do Google AdWords work for you?

what a broad question lol. so many answers there. A lot of people lose money as they learn it. Hell I don't know the system that great but came close to making a profit not long after I started using.

I know some people spending thousands and thousands a day. Yeah they are making a nice profit

You're using Adwords for your adult sites?

I adjust what I'm spending a lot, so I focus more on the profit vs time - rather than total money spent. Ad words can take up a lot of time. The more I'm spending, the more time that gets burnt making adjustments and monitoring everything. Time that can be better spent making more money in other areas.

I do about 1-3 sales a day, which costs me $1000-$1500 per month, I earn back about double what I spend. Actually, this is down by about half - I have been busy as hell and picked up a few other adword clients so my time is split even more - but the difference is earned back through my clients.

When I was buying $5k-$10k a month, I was doing more sales but made a lower profit percentage and it required a lot more work on my part to manage it. Overall the time vs income wasn't worth it even though I was making much more.

My current setup works more like a passive income stream, with only 1 or 2 hours of work required on it each month doing keyword and ad swaps.

Anyway, I recommend you hit up google blog search and read up making your quality score / landing pages better optimized so you can actually get the lowest per click cost possible. Blog posts like this can and will save you $1000's in learning the system.