Pros
Pretty well development processes, skilled teams (depend on project and PM/TM). You can choose Solution Delivery department or Core aka Platform department. Platform department is absolutely product-like development when customer is teams from Solution Delivery. That is, Solution Delivery is like outsource company. So as fact, you can choose more preferable department and rotation is also possible but it may be challenge a bit so you will require really good Line Manager to do such rotation. Before COVID-19 a lot of developers had business trips to customer's on-site, I guess it's Pros especially if we are saying about countries with good travel allowances. If you are in Platform department, you have more modern technologies and opportunities for experiments and grows. In Solution Delivery you can face really interesting project with good business and fine development process when external Customer will push your team to grow and evolve.
Cons
In Solution Delivery department you will be restricted by platform in technologies and experiments especially in the past years. That is, you will be "config based developer" and you will see as losing your skills. And in general a lot of projects with really old technologies especially when you will be assigned for "support" of deprecated project. After COVID-19 almost over business trips for developers so you will have only salary which is typically less then market median. To get corporative merch you will be forced to fight with HR :)