I have a pretty extensive insteon installation in my house, and like it quite a bit.
Which remote did you order? The remotelinc2?
While the inlinelinc relay has RF capability, be aware that range can be greatly affected by installation. Metal boxes and wires and wall materials can have significant affect on this range.
Hopefully, you won't run into any range issues. If you do, however, there are solutions, but this would require an extra device, or two (see access points).
Personally, I use four insteon devices (appliancelinc) to control four zones of landscape lighting.