Ucoz is not known for having the best reputation, but this is mainly due to users creating low-quality content through the builder. However, recently the internet is being cleared of such resources, including on Ucoz. It's also worth noting the administration's attitude towards its clients, especially the work of the support service – that's a separate topic. Nevertheless, as a CMS, Ucoz is quite good, and in some aspects, it's even simpler than open WordPress. It has a flexible template system, and working with the code allows you to customize the design as you wish. Additionally, there are many useful tools for web designers. Sitemap and robot.txt are generated correctly. As for the pricing plans, they are quite flexible: if you want to create a website for free, you can choose a limited functionality with a third-level domain and ads, as well as 0.4 GB of disk space. This is a great option for practicing with the builder. If a more serious project is needed, various paid plans are available. The prices are quite reasonable – a good plan will cost about 500 rubles per month.
