Standalone Internet here with WOW. We pay $40/mo., which is the price for the first year for 15/2 service. Switched from Insight/Time Warner because they kept upping the price- 11% increase first year and then 8% the second year. Switching every year or two takes care of this inflation somewhat. It seems they (cable companies) won't do business for less than this price floor because they also offer 2/1 for $40/month. We would switch to a standalone 5-7/1 plan if they offered it for $20-$30/mo.
As far as quality, WOW had a line problem in our neighborhood and it took them a week to fix it. But fix it they did, and they also credited our account for the week of sporadic disruptions. All is good now on WOW and I believe their Internet service is slightly better than TW with lower pings on the speed tests.