The Lenovo L2251 has a maximum display resolution of 1680 x 1050 pixels. That's 15% less display resolution than the most common display resolution of 1920 x 1080 pixels. The display resolution of all PC displays of this spec and age ranges from 1366 x 768 pixels (worst) to 2560 x 1600 pixels (best).
We compared all the other LCD screens that have a display resolution of 1680 x 1050 pixels to this flatpanel monitor and we think the Fujitsu B22W-7 (£184.22), and the Asus VW22 (£126.42) which is cheaper is also worth considering.
LCD screens with a more display resolution that might also be worth considering include the Benq RL2455 (£129.99) (1920 x 1080), or the Viewsonic VA2349 (1920 x 1080) which also has a higher Rating.