I have the Lumia 640 which has the same CPU/GPU/RAM as the XL and the same display resolution. For day to day use it does just fine, however please note that the 640 XL does not have a larger screen than the 1520 (the 640 XL is 5.7" and the 1520 is 6"), and the 640 XL screen resolution is only 720P compared to the 1520's 1080p. Now honestly 720P is still good I just wanted you to be aware since you noted it having a larger screen which it does not.
Let me ask you, when you say "day to day use" can you be a little more specific? The hardware in the 1520 is still today quite good and significantly faster than the 640 XL's internals. Have you considered getting a refurbished 1520? I'm assuming price is a factor otherwise you'd be looking at the 950 and 950 XL.