Monica, I have same situation as you. Since I cannot drive anymore I am home a lot. No matter, there is plenty to do here. We also have an effective programmable Honeywell, but also have a gifted Nest still in box for a couple of years. No real reason to hook it up, since we are always tweaking the AC and heat. We keep our AC set between 72 - 70; (we sleep at 70 under a light blanket) In winter we sleep at 67, keep it at 68 during day and sleep under same type of light blanket. Bottom line is we do not need the Nest, and on trips we just keep the house about 5 degrees offset from normal, and when we get home it doesn't take long to to get to our desired temp. House plants like temp above 60 degrees, too. Our yr2000 house is well insulated, and that helps a heck of a lot.
Nevertheless, you are itching to get a smart thermostat so just do it!