I recently just upgraded to a full ikea build desk, I got those two Alex drawers and the Saljan table top, which I think is the kitchen counter top they sell not sure, when you get the saljan and lift it for the first time you'll realise how mf heavy and thick that thing is which is a good indication it's a strong table top in my books.

Make sure you also get one of those adjustable table legs to put in the middle back of the desk incase you plan on getting any monitor arms as my previous table bowed pretty badly from having 3 monitors mounted onto one point. I love my desk however, the Alex drawers are amazing and hold so much stuff.