Msg#: 4613286 posted 10:13 am on Sep 29, 2013 (gmt 0)
I don't think the extra 10GB above the 6GB will do much for you, since it's a fairly small shop. SSD storage is probably going to make a bigger difference, especially on disk writes, but it depends on the platform (an array of good HDDs can still outperform SSDs). Perhaps you can ask for a trial account and benchmark the two?
Don't underestimate the importance of CPU either; especially on shared platforms this can be a problem -- another reason to go with a dedicated server or VPS.
Option 1 is a cloud server, which means that its resources are shared with an unknown number of other users. Option 2 is as you mentioned also a shared server. Your site speed is in both options more influenced by the other sites which are running on that server than by the physical resources. One site with badly coded scripts can severely damage performance of your site.
If budget is not a constraint, go dedicated. However if these two options are the only options you can chose from, go for the second one. In that option the server owner is a Magento certified partner and likely better knows how to tune the server for a site running Magento than a generic cloud host.