Am in the same situation as OP. Thinking about migrating to Naecheap but I heard some horrible things like slow websites and that it doesn't work well with Nulled themes and plugins.
Maybe if you start getting a good amount of traffic and use too much resource then they might suspend the plan. This happens all the time with shared hosting providers.
1,000 visitors a day is nothing if spread over 24 hours. It completely depends on the load on the resources. For e.g., a movie streaming site is resource hungry, and even for small visitors in a short time, it will consume a lot of resources. Most of the services will inform you if you consume too much resource before suspending. For multiple small WP sites, shared hosting is okay. It completely depends on case to case basis.
I had a domain with 1and1 and they kept renewing the domain again and again and showed a negative balance in the account.
I switched to WPX hosting. However I transferred over only 1 website to test waters so to speak.
