The Orange Micro Terror is a hybrid tube amp. That means that the preamp is tube and the power amp is solid state. The Roland Cube 40 is a fully solid state amp. Therefore, the Orange will have better tone but no effects, therefore you will have to rely on external pedals. The Roland Cube has built in effects and amp models.
The question therefore really is whether you value tone or effects. If you are looking for crisp tone, then get Orange otherwise get Roland.
Also note that the Micro Terror is just an amp head the you will have to invest in a speaker cabinet as well. You can try to look for second hand cabinets in your city if you are on a budget or you could get some carpenter to build one for you with a good speaker if you know what you are doing.