I like that it is easy to use with no extra software or plugins required - just upload your website files into an FTP account you create in their dashboard (which makes me feel more secure).
It can be difficult at times if something goes wrong when uploading/downloading but they are always quick about resolving any issues! We have been very happy so far using this service as we were previously hosted by another host which was not good enough quality wise nor did offer much support either way once things went pear shaped!!