I've been using a Sansa Clip+ for just over a year now, mostly for Audiobooks, but also for my music collection. It does not distinguish between content loaded on the internal memory versus content on the micro SD card, it only looks at the tags, so it doesn't matter where you load stuff. I don't use any auto sync features, but prefer to manage its content manually, using a file manager and drag and drop, or copy and paste. I keep it in Mass Storage mode, so I can use either Linux or Windows to access. It is detected by Banshee, and can be managed from the Banshee UI. Haven't tried any other applications. I find the sound quality to be very good, comparable to my girlfriends iPod Classic, assuming that you have good headphones, or are connected to a quality audio system. Playlists are rather specific though. All the songs in a playlist must be in the same file folder as the playlist itself, which I find quite annoying. You either have to put all of your music in one folder, or have duplicates in each playlist folder. Since I like to keep all my music in Artist/Album/ folders, using playlists is a real pain. It manages all content by tags, with no regard to folder location, with the exception of the playlist quirk. Does a nice job with audiobooks, keeping track of where you left off for each book, and resumes correctly on next startup, but it is important that you have your audiobook files properly tagged with genre (Audiobook) and track number, or they may not play in the correct sequence. As for the construction quality, yes it's relatively cheap, but it only costs $35. Mine has survived numerous drops, but it's small size, light weight and thick plastic case make for a light landing each time. I haven't had any problems, but figure if it last more than a year (which it has) and I do have a problem, I'll just get another one and swap the micro SD card over to the new one.