I have never found solo ads to work. They may bring a little traffic, but you will not see a high conversion rate, and it's definately not worth your money. I have also never found CPA offers to work. Again, maybe some traffic, but not really worth the time.

In anything you try online, be ready to lose your money. Everything is a learning experience, so don't spend $1000 on solo ads when you don't have it to lose. I recommend that you stay away from the above, but if you decide to give it a try, be prepared to take a hit financially.

Hope this helps,
Alan