What are the features of web hosting?

When they started was amazing company, now unprofessional, terrible, for one ticket waiting more than 4 days. They killed 2 sites, every 2-3 weeks getting infections, once recovered my site from April, but I asked from December, by contract they are saving the day, one week and one month, I have 2 sites that invested thousands of dollars just because they couldn't recover I lost and of course from begging I had unlimited disk space and now they changed to unmitered, which they are not advertising, which is about 30gb for all backups and sites.The last word, I am now moving all my half broken and infected sites from there hosting, do make my mistakes..