Newbie - Is SG115W the right choice?

Hello all,

After talking to sales I was directed towards SG115W unit but I was hoping to hear from the users/admins in the real world. I come from years of SonicWall and most of SW units have been notorious for overstating their speeds and processing, especially when web filtering and AV are turned on. Looking to switch from SonicWall client has TZ1xx that has to go either way so rather than getting yet another bigger SonicWall we want to try Sophos. So, no disrespect to sales I am hoping community can chime in.

Site A (HQ)

• 10/10Mbps WAN with a AD/File/Print Server. Looking at the specs, 120Mbps even with AV on so that checks out.
• 15 users (growth plan to 25)
• web/SasS heavy users so web filtering/reporting  (iView or at least a syslog server) is a must along with AV so we are going with Total Protection.
• VoIP so QoS is a must, seems like Sophos uses concept of 'Bandwidth Pools' to accomplish this. Right?
• DHCP over VLANs to separate the traffic, single physical port preferred
• Plan on using builtin WiFi 'just to start' but would most likely add Ubiquity = because we have used them with success but open to try Sophos APs.
• Potentially adding a 2-3 RED boxes for few VIPs home offices

So far I think that SG115w will work and fits all the requirements. Next phase is where I am not sure it will become absolute quick and if it can keep up.

Site B (future growth within a year) = get another SG115W

Same size office that will be treated as a 'branch', build SiteToSite VPN towards Site A for access to AD/File, Print resources with the split tunnel for web/VoIP.

It would be nice if could push all the web browsing towards Site A to benefit from 'central reporting' and save some $ on Total Protection for 1 device rather than 2 but I am not sure of the performance of 'Site A' SG115W processing and running Total Protection for both sites (now double the amount of users behind it)

Is SG115w best choice for the setup and if not what model do you recommend at each site? I have not worked with Sophos before (other than some playtime with virtual XG) so I would appreciate the feedback and advice.

Thank you for your time.