Yes, I have a few tropicals and sub-tropicals that I used to keep indoors year round when I first started into bonsai. After a few years of less than great results I decided to throw caution to the wind and now put them outside whenever I'm pretty sure its not gonna freeze. I've been bringing them in at night for the past couple weeks, as the forecasts have been for lows below 5C and I'm really not that brave

, and putting them out for the day.
They do seem to like it better, though I still have nothing beyond what I would call twigsai, but I'm a patient man.
