Yer a miserable lot of buggers .. winding the lad up. Ah the days of sending the apprentice to the stores for a long stand and a tin of elbow grease.
Yes a 172 is just like a 152 except it doesn't bounce about so much in the breeze. Nothing to be concerned about .... and anyway you will have a good instructor with you so before you start ask him what the differences are .. such as the rotate speed, the base leg and final speeds etc.
Reading the POH helps too.
And if it's a realtively new one .. enjoy finding the 12 or 13 fuel drains for the preflight including crawling about and lying under the engine
.