You will have people who depend on you to allow them to get on with what they do best. You will likely find that you don't write code any more, but have to trust others to do a good job - a better job than you might have done, even. You may not have the time to understand everything they produce. Even so you need to be able to understand the system at a higher level.
As you say, you have some architectural responsibility. This can seem like a large weight on your shoulders if you think that it is all your job. Remember that your developers probably have a huge amount of understanding of the codebase: Don't be afraid to let them guide you, at least partially, in making improvements. There may be others at a similar level who have moved elsewhere in the company who can give you what their plan was for making things better... They might have been where you are but without your remit.
It can be a role where you get to build stuff (with the hands of others), have some power and weight behind decison making, also ever-varied and even fun. It can also be stressful and extremely taxing. Good luck!
As you say, you have some architectural responsibility. This can seem like a large weight on your shoulders if you think that it is all your job. Remember that your developers probably have a huge amount of understanding of the codebase: Don't be afraid to let them guide you, at least partially, in making improvements. There may be others at a similar level who have moved elsewhere in the company who can give you what their plan was for making things better... They might have been where you are but without your remit.
It can be a role where you get to build stuff (with the hands of others), have some power and weight behind decison making, also ever-varied and even fun. It can also be stressful and extremely taxing. Good luck!