I’m wondering how the step-in bindings compare to the strap in kind. So far I’ve only used the strap in kind, but mine are getting pretty worn down and becoming difficult to tighten. I am thinking of getting new ones and I want to know how reliable the step in ones are. Specifically, how likely are they to come undone while Im riding down the hill, maybe going over bumbs and jumps. Do they keep my feet nice and snug to the board, how is the performance. Im fairly decent at snowboarding, been going for a couple of years if that makes a difference. Any input is appreciated, thanks!
Total novice here, but I’ll try to help. I’ve tried both, one medium quality strap in, and one rental quality step in, and aside from feeling a bit more secure in the strap ins, I could not really tell that much of a difference. However, this took place in Missouri, and I wasn’t really dealing with anything more than a small ice covered hill that cost $50 a day. Your experience may vary. This site here seems to have some pros and cons for both, and these two forums also seem to have some good info.
Happy boarding 
My experience —
I like the convenience of the step-ins. Also - I feel more secure in them. Really locked in to the board.
That said, I have strap-in bindings. And I find my boots to be about 100% more comfortable than boots rigged for step-in. If you already have strap-ins and a pair of boots you love, I would just replace the bindings.
Clickers are, for lack of a better way to describe them, often used as training wheels for novices. They find themselves employed by instructors because their straightforward design is easier for novices to grasp. This isn’t to say that everyone who uses clickers are novices (different people have different preferences), but I would have to say it’s true in the majority of the cases.
You were right to suspect their durability on the slopes. As a professional snowboarder, the main issue I have with step-in bindings (beside the inferior support they provide when compared to a strap-on system) is their vulnerability to becoming iced over. The grooves into which the bottom of the boot are locked are notorious for becoming packed with ice as the day progresses. You may not notice it when you’re strapping your boot in. You may not even notice the reduced performance if you manage to keep the area clean. But I can almost guarantee you that the binding will eventually becoming so packed with ice that the boot slips from its holster. And if this happens when you’re stressing the mechanism on hard turns or difficult maneuvers, it’s very likely you could seriously injure yourself.
I would highly suggest a strap-in binding, but if you’re dead-set on purchasing a step-in system, you should take a hybrid of the two into consideration. They’ll provide you with the ease of use attained by a step-in system while still maintaining the support a more traditional strap-in system.
Basically chipping in here to agree with Faxxis. After using many many different boards and bindings over the years, I’d have to go with the straps. The one situation where step-ins might come out ahead is on well groomed slopes where you’re constantly taking your board on and off - teaching a beginner for example. Even then I’d want to make sure the bindings had a spoiler - those semi-rigid boot systems don’t give enough precision.
Step-ins tend to be a little “loose”, get clogged and freeze, and restrict you to a certain kind of boot which may not be best for you. I guess the fact that straps are still around is a strong argument in their favor.
All this talk’s making me want to head for the mountains !
Probably better suited to IMHO, as the OP is looking for opinions.
samclem GQ moderator
I prefer stepins (I have Burton stepins, which have a strap over the ankle that you can lock down of you want more control). You can clean any ice out just like you would when your strap mech gets iced. Straps were a pain to hook/unhook, and pinched a nerve in my foot so I’d have numbness for months. For me, step-ins are quick (important when travelling with skiers) and blessedly free of pain.