I like the look of it, not sure what the issues you have with the battery are, how else is an electronic device meant to work it if doesn't have a battery, Ultegra Di2 has a 3000km battery life, and if not shifting a front mech, this should be increased. for commuting, unless you have a dynamo light set up, then charging lights is somthing you do regularly, add the Di2 battery every few months to this shouldn't be an issue, same for touring, your going to get to somewhere you can charge with in 3000km, or carry a spare.