We stayed at Miguel's place for 5 nights when we visited Seville in November.
It was a great base - I have family in Seville and it was near their neighbourhood, but also a short walk to the Alameda and an easy walk into the centre. The neighbourhood itself is quite cool and up and coming - but feels totally safe to walk around at night.
The decor was great, it was super clean and comfortable.
Miguel was a good host and made us feel welcome, and was easy to contact and communicate with.