Best VPN device

Hi All,this is an age old question but if anyone could give me some adive I’d be greatful. Looking to setup a VPN (not permanent) but to support maybe 3-4 users dialing in periodically for file\data sync , file access. Fast speeds are important – Just wondering what people out there are using “device wise” for this job. Netgear\Linksys\Cisco?. It would be handy if it worked as a small switch\wireless router also but not essential. any help appreciated?. Thank you