we are now moved to the new VPS server and really said goodbye to shared hosting. we tried a few unlimited shared hosting but all of them has some issues:
1) unlimited is not really unlimited, take care the terms and condition
2) website got redirect or rewrite easily
3) if the server you hosted got hacked, technical support cannot help
4) down time really cannot control (sometimes VPS too)

we moved to use VPS for around 1-2 years, it is really a good choice as compare to shared hosting because you can customize the server you want.
However, you have to take care the bandwidth and storage space usage very carefully.

so depend on your budget, in the internet world, you have these choices:
1) shared hosting
2) VPS hosting
3) semi-dedicated server hosting
4) dedicated server hosting
5) cloud hosting

we did not yet try cloud hosting due to its high cost…

if you have enough budget, you would choose cloud hosting or dedicated server hosting.
However, due to the budget concern, you have to select among the choice 1-3.

we are now using the VPS server from vps6 provider.