The taxi from your hotel will bring you to the station of the cable car at the midway hillside. hauling the suitcases into the cable car is tricky but not difficult, everybody queue and there are helpers(to close the door from the outside!)
But on arriving at the Genting station, it's a very long walk (5 minutes? 10 minutes? I forgot), though with "conveyor belt" walkalator and escalator to the hotels, can be a hassle for the elderly and family with toddlers. if you want to avoid this, get the taxi to take you all the way to the hotel entrance, that is, avoid using the cable car altogether.
Personally, I prefer using the cable car as the road to the top involves many hairpin bends and serpentine narrow roads, which I used once, coming down hill, with a bus whose driver seemed to have a bad mood and taking it all out on us poor passengers or he had a death wish. Never, never again.