41 Castilla is a nice cosy and clean apartment that made our stay in Seville extra comfortable. It has a convenient store nearby and also extra points with the Triana market nearby for breakfast or if you fancy to cook some meals.
The hosts are polite and check in/out was a Breeze. Only note is that Triana is a quieter Neighbourhood so it's conducive for rests at night, but the payoff might be the slight walk (maybe about 15mins) to the main attractions across the bridge.