I personally prefer my DSE901 over the Joye 510 but I'm in the minority here. Either is a good choice because there are plenty of big battery mods that use either the 510 or 901 atomizers. So you get long battery life but the same vape experience as you had with the original equipment. There are also big battery mods for both that run at 5V or higher for both brand atomizers.
A really quick 510 vs 901 rundown. The atomizer of the 510 runs hotter than the 901. That means the 510 has less battery life but produces more vapor and TH. The 901 has more flavor and longer battery life since it runs a bit cooler.
There are liquids which I feel taste better at higher temps and others at lower. The strong flavors,
tobacco, menthol, coffee and the like seem better, more taste, at the higher voltages (so better 510) but fruit flavors, chocolate and sweets are nicer on the 901. All in my opinion of course.