help me chose entry level UTM device for small office

i have a checkpoint 600 appliance that have been using as UTM device since 2014, just as a firewall/router for the last year. renewing the licence with support is quoted at $800 Cdn for 1 year so i started looking at other options.

So far have looked at watchguard t15, fortinet 30E, checkpoint 730, meracki mx65 (don't like their pricing or shut down after license expires policy though). Any other entry level UTM i should consider, hoping to keep total costs <$2000 for 3 years of service.

we have 5 users, internet speed won't be faster than 100Mb/s. Don't use VPN. I'd prefer graphical to CLI. Firewall solution only has been fine but need to make some new hires and want better security. Needs to work with a aruba WAP as well.

thanks for the help!