Cons: They offer several paid levels but honestly, the paid or Free plan offer a limited package and all of them will funnel you to the main plan. . Now this is just for your funnel builder and not your hosting or CRM. For half the amount I can outsource and build landing funnels that I own. The main focus of this is for small business and solopreneurs. . Now it is if you can put the software to use and turn sales. But if you are just starting out this will kill the cash flow. Additionally. I found that a lot of creativity and design are needed. So be prepared that to make this work it takes time. I found it to be very time consuming and not the 5 minutes they claim.
As a software engineer myself, I can tell you that building funnels from an application standpoint takes massive amounts of work. There's a great deal of coding and integration that's required here. From email systems to landing page implementations to credit card processing APIs, and everything in between, so many platforms need to "talk," that it takes the bar too high for the average marketer. 

The full Etison suite allows you to set up an unlimited number of funnels, meaning that the marketing possibilities are endless. Similarly, you are also able to host an unlimited number of users in your membership funnel, which is very useful. You can also set up an unlimited number of pages per funnel, giving you unparalleled control and power. Put simply, the Etison suite gives you limitless power and access with regards to marketing funnels.
There’s a better solution: It's not impossible with sales funnel management automation. Set up your system with the response you want, and it will be ready to send it immediately to any interested prospect—even the one who contacts you on Saturday at 3 am. As captured leads pass down the funnel, your sales automation platform can send added personalized emails that are just right for each moment.

Clickfunnels: Review, Demo, Pricing and Features: