Aw he is absolutely gorgeous! He looks extremely happy in his new cage and his glass dish! That was a great find. Glad he prefers the front opening door - I find it way easier - you're more on their level
And they can just walk out. People think hamsters like to climb - but I reckon they only climb because they need to get to something they want - or because they're looking for a way out. I think they enjoy levles though as it's somewhere to go and variety.