I have have the 30731 for about a week and be , thus far , very pleased .  when I begin shop for a new alarm clock , my primary selection criterion be that it have a lead display . many new clock have multifunction lcd display which be nice except that you can not see they in the dark without press a button to illuminate they like a lcd wristwatch . alternatively , some of these lcd clock have projector attachment that shine a time display on the wall or ceiling , but you can not see they in a well-lit room ! a lead display be visible under all ambient lighting condition and seem to I the most logical and straightforward solution .  once the universe of clock be narrow to lead model , the next consideration be the size of the LED digit . they run anywhere from approximately 1\/2 inch to 1 inch . I be very nearsighted , so to be able to see the time in the middle of the night without my glass , be purely a case of `` the bigger the better '' . the 30731 have digit that be .9 inch high - bigger than most other led clock and easily readable san glass at 4am . obviously , the larger the display , the larger the clock , but I have lot of room on my nightstand and be not concern with the 30731 's somewhat larger than usual size -lrb- about 8.5 `` w , 3 `` d , 4 `` h -rrb- .  at this point , additional useful feature be the only other necessary evaluation . the 30731 have the ability to set itself by receive a radio signal from the US National Institute of Standards and Technology -lrb- NIST -rrb- located in Colorado -lrb- do a Google search for wwvb and you 'll find they - lot of useful info -rrb- . you set you timezone and whether you use Daylight Savings Time and the clock do the rest .  I can report that from my location in NY , this work perfectly but you should know 2 thing . first , I have find that the clock must be face East-West -lrb- i.e. face Colorado from NY -rrb- for the auto-setting to work . if you bedroom be lay out such that you clock will not be face in the general direction of Colorado , you might have a problem . -lrb- actually , I think if it face directly \* away \* from Colorado , that be ok too . as long as its not `` end-on '' to Colorado . -rrb- furthermore , as the instruction point out , time signal reception be best in the wee hour of the morning , and that be the only time that , for my location anyway , the clock be able to sucessfully set itself -lrb- but it have sucessfully reset itself every night -rrb- .  my only complaint , and it be a minor one , be that the snooze alarm bar , though large and easy to find , do not really depress like a button but sort of pivot front-to-back on a stiff spring and can cause a little fumble when you be in a semi-conscious state .  the alarm be a electronic `` chirp '' . loud enough to wake I but not so loud as to cause coronary arrest .  the clock have battery backup for power failure if you put a 9v battery in it -lrb- not include -rrb- .  it do not have dual alarm or weekend setting . it do not display date , day of the week or seconds .  you can see a better picture of the clock and get more info on it at the equitytime.com website .  I have not experience the dim or irregularly illuminate display report by the reviewer from Redmond . I find it amply bright with all lead segment uniformly light .  i be quite happy with this alarm clock and can recommend it without reservation .