Whether you would find a 7" screen adequate I don't know, I would find it small, but then I'm retired!!! The only way to find out for you is to try it - ask in the store it's cheapest.
As for being in the right forum, again yes.
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Synology invite you to their launch event on 16th September 2015. See the unveiling of the new DSM and products live, plus a chance to win a populated NAS! Tickets are free and available now. Click HERE for more details