I want to start off by saying that while I do think Webwave is decent for some uses, I will be critical since there is so much competition for site builders, ecommerce builders, and CMS's. Please note that I have only used this for 1-2 days so my experience is limited and if I am mistaken, please let me know. I have not yet hooked up a custom domain, set up email, or shopping. I am currently undecided whether I will keep or refund (bought 3 codes). The deal is what makes this a purchase (hosting + email), but without this Appsumo deal, I am not sure I would ever buy their Premium Plan

The biggest pro is that for only $59 you can host 3 sites with hosting for free forever.
The biggest con is that while the company has been around for quite some time, the builder, cms, and some of the features have simply not been able to keep up with todays competition. If you have experience with Webflow, Shopify, Wordpress; then you may feel a bit underwhelmed.

To give my appreciation for this deal and show that I have spent some time on this, here is a free template anyone here may use (clone here https://webwave.me/webmasterPanel/templateSharing/nqflmp ). It is a very simple template, some of webwave's free templates are nicer already.

Here are the pages I made
home - https://nqflmp.yourbrand.studio/
team - https://nqflmp.yourbrand.studio/team
approach - https://nqflmp.yourbrand.studio/approach
investment criteria - https://nqflmp.yourbrand.studio/investment-criteria
contact - https://nqflmp.yourbrand.studio/contact
landing page 1 - https://nqflmp.yourbrand.studio/landing-page-1
landing page 2 - https://nqflmp.yourbrand.studio/landing-page-2 (I actually have an issue here, maybe a bug I don't know)
News feed - https://nqflmp.yourbrand.studio/news
News post - https://nqflmp.yourbrand.studio/this-is-the-title-of-my-news-story
privacy - https://nqflmp.yourbrand.studio/privacy
terms - https://nqflmp.yourbrand.studio/terms-and-conditions

Pros
-This deal is pretty good. Basically free hosting for life.
-This deal seems like a great fit to host long term small business websites
-Comes with email accounts
-There is a learning curve as with any builder and cms, but the learning curve is much smaller then with other builders
-Setting up responsiveness is fairly easy and has an auto button that tries to set it up for you and does a fairly good job
-Looks like updates happen fairly often
-Language versions seems simple to set up
-Easy to use images. Simple edits within app. Easily create directories for storing images within folders
-Image integration with Unsplash
-The company has been around since 2013 so my worries with buying startup deals that won't be around in 1-2 years doesn't apply
-Supports svg
-Easy to set a page "For everyone", "Logged in only", "Password". Maybe it can make a very simple paid member site?
-I like being able to easily make vertical space in the builder. The footer auto gets pushed further down

[PART 2 BELOW]