Yea, I've got both the Lee and RCBS hand primers with the primer trays and several Lee's without it. I think I prefer the Lee over the RCBS but I like the square primer tray on the RCBS better than the round one on the Lee.
Usually though when using the Lee classic kit I don't bother getting them out because I load complete rounds as I go instead of sizing all cases, charging them all, seating all the bullets etc etc. I do all the steps to load one complete round then move on to the next one. I can seat the primers with the classic kit and a mallet in about 3 or 4 taps consistently and practically never pop a primer.
Honestly, I'm of the opinion that if you're new to the Lee kit you should pop one or two primers on purpose just to see how hard you have to hit 'em and how harmless it actually is. Granted, they're fairly loud but aside from making you jump they don't do much that could hurt ya. Now, maybe if a fella was leaning over his work trying to look down in the case at the same time as he's inserting a primer and isn't wearing safety glasses I suppose its POSSIBLE to get something in your eye but the priming rods usually fit the case mouth fairly well so you can't see anything anyway. The natural ergonomics of the whole process is to have it sitting on the table or bench out in front of you standing vertically so it's not pointed anywhere near your face, it's pointing straight up.
I've got 5 or 6 different calibers in the "Zero Error Target Loader" which is a fancy target version of the classic loader and it comes with a hand priming tool so when using those kits, you have to hand prime since it doesn't even have the tool to prime with the mallet. The target kits are really sweet since they have a fantastic neck reamer setup and the die body has micrometer markings on it so you can zero the die to a particular bullet then dial the die down to an exact seating depth. It also has the hand held case length trimmer and shell holder.
Sorry to get so long winded... I just kinda get into these kits so I tend to get blabby about 'em when they come up.