IMB4, remember ucoz isn't like joomla that you will be free in all activities you wanted to create. uCoz is closed source.
Things that you might consider when using as a free user.
1. uCoz is for Forum and Blogging purposes with minimal SEO.
2. SSL isn't free at all even in joomla.
3. You must have a good content to unquarantined you website.
4. uCoz could not be easily hacked that is why I'm still here.
5. uCoz is not for you if you use it for illegal purposes. If I can see you doing that you are in my list.
6. The only best thing that I appreciate about uCoz is their unlimited space for free user. And of course there is a conditions for that.
7. Lastly, among all the web builder I choose uCoz because it is easy to be used and I have good friends abroad. I will not name them.
And remember also that uCoz is not like joomla. It is not Content Management System. uCoz is more on website building and designing. I know you are new here. But still I'm satisfied with their service. I know how difficult if they don't have enough funds to maintain there server's cost. And also providing 100% data securancy. I know they have also lapses but they aren't old as joomla they just started last 2006 correct me if I'm wrong. And I'm here now for 7 years.
It's a shame that ucoz does not use free tools that could improve the system. I also do not understand the "_" in the url when Google penalizes it. They would have to leave the free option to edit the url. All this would make more people use ucoz.
It's not a shame it's a business. I will ask you which one will you choose having a wix wysiwyg drag and drop or uCoz that will enhance you mind and imagination to produce unique templates. Or joomla that you cannot edit it at all when you wouldn't buy the whole bundle except if you have your own server. Here in uCoz it's just a small fee. It's just saying thanks to their developers. You know uCoz market is mainly in russians you could visit the russian board if you wanted some clarification.