Nidesoft LG Video Converter is a multi-format video converter. Although its name suggests that this is a tool for converting files to formats supported by LG phones, it really isn't. Well, you can use it to convert your video files to 3GP and MPEG-4 files, but there are only two conversion profiles for LG phones, the rest are for iPhones, iPods, Zunes, PSPs, Walkmans, etc. My point is that this isn't a tool specifically designed for LG phones, despite of its name.
This converter has a common design, and comes with the standard set of features: a video player for quick video preview, a video editor that allows you to carry out basic video edition tasks, and a list of conversion profiles for you to choose from.
In terms of performance, I can't complain about the conversion speed, because it is as fast or even faster than average converters. The only problem I have with this and other converters by Nidesoft is that you can't set the resolution of your converted files manually. There is a list of available resolutions, but in my experience, files are often encoded in non-standard resolutions to keep aspect ratio.
All in all, this is a standard converter that isn't really worth your money given that it only offers two conversion profiles for LG phones.