Plan to use SharkSpace.com for hosting my e-shop with them. This company is optimized for application hosting and their features will be enough for me to run my shop smoothly.
Any discounts on them and reviews?

Why do you wanna use them namely, what else did you looked up?

SharkSpace.com provides quite enough features in their package plans to use them for running e-commerce web sites.
Three plans they offer, which one have you chosen?

I think you may use not only shared hosting from sharkspace.com but reselling as well. They are nice and price range isn't very high.

Why not to compare this company with some other, for instance, MMhosting.com offers much more cheaper shared hosting and reseller accounts. It is powerful enough for your business applications to run fast and efficiently.

I think you should broaden the range of your search. Have a look at Serverpoint.com as this company has good reputation all over the world. It is also optimized for application hosting and provide more security, reliability and speed than traditional web hosts. You need to look at the quality of the service and especially customer support.

I believe junaweb.com offers good prices and packages as well.