They can make editing a lot easier for photographers, but keep in mind that among the seven, only HDR Efex Pro can fully run as a standalone program. Also, it's very much possible that Google won't continue developing the suite. In its announcement post, the big G says it's making the collection free, because it's focusing on mobile photography apps, including Photos and Snapseed. If you already paid for the plug-ins earlier this year, though, you can expect a refund notice to hit your inbox soon.