We have been biking much more this summer and have 2 centuries planned for the fall. She is on an older alum bike with shimano 2300/sora parts but never really complained too much except when the cables gets loose and shifting isn't clean/sharp anymore. On a "training" ride a few weeks ago, she sampled one of her friends bike and was really surprised how smooth and solid it was. Obviously she came back and wanted to get the same bike. After finding out what kind of bike it was, we weren't going to spend $4k+ on a cervelo. Any carbon/ultegra combo is going to run 3k+ at the LBS. So instead of spending 1k on a new bike for a alum/tiagra, i can upgrade to the new 105 11sp + wheels for less. Based on all the talking heads, the 105/wheelset is huge upgrade from the 2300 circa 2012. The bike will basically feel like new again.