jolis.net company - how stable are they?

Yes, they've been in business since 2004. They sure do understand the industry pretty well and they have a wide range of services. So if you need to use them, am sure you will not regret.

I'm unsure if they offer a money back guarantee, you should check this first.

To my mind, the comparison will show you the right place to deal with.
As for reliable web hosts, I can draw your attention to:
Hostdone.com, Aspnix.com and Hostgator.com web hosts.
Price is less then market price compared to other hosts that offer the same features which is nice to know you're saving money!

don't waste your time, compare them and choose the best one for your specific requirements and budget.

I think you should have more options to choose from. Take a look at services provided by Just199.com. They are reputable host with cheap and reliable solutions, you won't regret of using them. You can use coupon 2012 and get 12% off!

Hostdone.com cheap web hosting plans will be OK for you.
They offer 99.99% uptime guarantee, zero packet loss and 100% content delivery to your visitors.
Support is a genuine 24/7 and responses are always within a few minutes, often with a full solution.

As I see jolis.net has quite affordable hosting plans which include many resources.
Why not trying them to see how reliable they are in reality?!

It would be better to contact them directly and get cleared your queries about their services. In addition, you can request any of their customers contact to know how is the performance of their service. Or you can find out some good web hosting comparison website and see which one suits your requirements.

To be honest I never heard of them, so I can not give you an opinion.

MTI’s Managed Hosting Platform™ is racked with high-end computer equipment (within our datacenter) for clients to run their businesses on. Engineering staff handle all the operational aspects: monitoring the systems, software patches / upgrades and technical support. Everything is enterprise-grade, designed for maximum reliability and security (far more secure and of much higher performance than that of a typical small/mid-size business network).
Hedge Fund Launch Manhattan