I like Sportful gear and, while I am not disappointed with my purchase, I did think this would be a warmer jersey. The word Thermal brings to mind something a touch more substantial than the warmth capability of this one. However, there are ways of making this work such as an additional base layer.
If you have worn Sportful gear you know that it is form-fitting. I'm 6'2" 165ish and the medium fits really snug, particularly with two base layers under it. This was a good deal on a quality item, but be aware that it fits snug and that it is probably best used in temps greater than 50F.