Which VPS (rockhoster.com or legionbox.com) is better to sign up with?

To select a hosting service, two options alone may not suffice. It's important to consider the website that will be hosted on it, potential traffic growth, main traffic type, and whether added security measures are necessary. With these criteria in mind, you can make an informed decision about which hosting service is right for you.

My experience using Rightservers.com Canadian VPS has been superb. Site performance is great!
It places high value on customer support and it shows. They've always had excellent support. Top of the line.

Think that you'll precisely not regret having looked at Hostnamaste.com OpenVZ VPS hosting.
High-speed server performance. Dedicated and passionate customer support + useful tools for the website!

OVH is a leading European hosting provider that has provided and continues to offer highly profitable foreign virtual servers in the cloud infrastructure. Unfortunately, due to management mistakes, one of its data centers suffered severe damage, resulting in irretrievable loss of customer data and a damaged reputation.

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Hetzner is a popular low-cost hosting provider in the EU with data centers in Germany and Finland. Their VPS offerings are highly flexible and can be configured according to specific parameters. However, there have been numerous complaints about unjustified client blocking from some places and frequent hardware breakdowns, indicating potential quality issues. As such, it's important to thoroughly evaluate all hosting options before making a final decision.