The upper is still a little messy, ice is still coming threw. Fishing from shore is difficult because the fish are still out deep. Your best bet is the marina or the Chinese food restaurant ( cant remember the names ). The weather this week does not like promising.
Google map the areas around the peace bridge , and look a little further up river you will see spots for shore fishing, good areas are by the train bridge you will see it on google map and a little further up from there you will see a wall also good potential, also you will see the marina in that area . Remember the water is fast in these areas with a few good "calm" pools. Depth in these areas very from 6ft- 9ft deep from the shore line out deeper they are around 30ft to 75 ft in the middle closer to Chippawa it is very deep 90ft out in the middle and 10-12ft at the shore line
Also there is No weed growth in the area right now, I still feel like it will be a least 3weeks or more before the conditions are back to normal for the upper.
As for the lower I have not been down in a few weeks, knowing how much sh-t is flowing over the falls and the ice-bridge breaking up is think it will be messy down there.
Here is a couple links that might help you for the lower :
http://www.niagarafishing.net/forums/index.php?s=900b2e0e4a722370726ed5b46ab91757&showforum=106ope
http://www.outdoorsniagara.com/bill_hilts_fish_locator.htm
http://www.niagarafishing.net/forums/index.php?showtopic=24885
hope this helps you out a bit, good luck
FYI the scenery on the lower is awe inspiring, the upper not so much ( depending on the area) ( further down river closer to Chippawa is very nice but out towards the peace bridge it is ok), but the are BIG fish in these waters! I have caught many trophy fish in these waters.
Cheers
Bow Man