Summary: You get a lot for your money in the box with the Lexmark X4550, and the standard wireless connectivity is an interesting offering. Scan quality is good and while plain paper printing is very good, photo printing with the supplied cartridges is uninspiring and slow.
Conclusion: We haven't thoroughly researched Lexmark's claim that it's the most affordable Wi-Fi-enabled all-in-one printer on the market today, but with online offers showing the price as low as £64, we'll give them the benefit of the doubt.
Summary: The Lexmark X4550 is a worthy but slightly dull All-In-One that's enlivened by the presence of Wi-Fi. If you have a Wi-Fi network in your home or home office then you may find this an interesting prospect.