Pbrking,
Sunwood Lakes is not in Tumwater. It's between East Olympia and Lacey. Neither Tumwater, nor Sunwood Lakes would be a long commute to Ft. Lewis. The Sunwood Lakes community is a bit remote from I-5, which means more traffic through Lacey to get to the Interstate. The town of Tumwater is on either side of I-5, so the commute would be easier. Tumwater has many shopping and restaurant venues, whereas Sunwood Lakes is more remote and will require about a 10-15 minute drive to major conveniences. If you have school aged children, they would have to be bussed to the Yelm schools. You can compare the different school districts with each other here:
Washington State Report Card
The community of Sunwood Lakes features a community pool and clubhouse. Home prices start under $200K, and can go to the high $400K for lake front properties.
Good Luck with your move to Washington.
Sandy