pro : use mostly for presentation and occasionally to display video , amazingly visible in a well illuminated room , minimal difference between ECO and normal mode so you can go ECO mode in any condition , cool feature to adjust light output to compensate wall paint color -lrb- so you can convert any wall into a real screen -rrb- , 6000 hour lamp in ECO , low noise , very good scaling of non native resolution try 1280 x 800 , 1366 x 768 and 1650 x 1080 , I feed a 720p hd OTA TV signal of a soccer game and the picture be excellent , actually amazing for a projector in this price range , brilliant color , lamp replacement around 120 usd , small footprint for a 2700 luman device , very good option for a datum projector at this price . actually this be the second Acer projector I buy for my group , very satisfied with the performance . con : \* no audio . \* no button , the remote control slide in the projector housing to be use as the button station , so if you lose the remote you will suffer , so better keep the remote attach to the projector . \* only 1 year of warranty , all other Acer projector have 2 , not sure why , however for less than 40 you can add 1 year of warranty . \* -lrb- not a con , more like a suggestion -rrb- seem like the auto keystone correction be too sensitive and may try to readjust the image every 5 minute or so , that cause image flickering , so manual keystone adjustment be the way to go . other thought : Acer be do very good electronics at affordable price , I have a Acer AMD laptop -lrb- 4 year old now -rrb- almost indestructible and very reliable , 2 23 '' lcd monitor buy for less than 139 each , very satisfied with Acer , keep the good work .