The biggest problem is that this messes with my sleep schedule. In the winter, there's no problem going to bed on time, or even early. However, I'm looking out my windows to a yard full of daylight, but it's past my sons' bedtime. This also makes it easy for me to lose track of time as the daylight no longer matches my internal clock.
We also have the issue that our living room--which is fully of windows--can get blazing hot even with the outside temperature in the 40s or 50s. In the summer, we often have to hide out on the much cooler ground floor level.
Still, it's nice not to bump into everything in my bedroom when I get up in the morning. The light is also quite a boost to my overall energy (when it's not raining). It's also quite convenient to have such a wider range of time to get things done around outside.
It's going to be interesting making the switch to Michigan sunlight for a little while and then coming back just before the Summer Solstice. Talk about messing with my internal clock ...