I was looking for a solution to your exact problem earlier this year (March-ish), I kept getting water inside my "regular" fishing boots trying to get my little pond prowler loaded up once it was at water's edge (see pics below).
Went to Dick's and found exactly what you found - I think they were on sale for 29.99 or maybe 24.99 I can't remember, doesn't matter. Decided to pull the trigger and thus far I've been very happy. I've stayed 100% dry and these aren't uncomfortable at all.
I initially was taking them off inside the little boat once launched and swapping for more traditional footwear, doing the reverse on my way back to shore from fishing. But honestly as the season progressed I found I didn't mind just keeping them on unless it was too hot/sun beating relentlessly - then the plastic can get extremely hot and very uncomfortable. This also allowed me some extra space inside the little boat, not having to find a place to hide these.
Pros:
-Easy enough to put on and take off
-I stay 100% dry
-Can stand and cast in them just fine, they are plenty comfortable
-Can beach my little boat in some remote little spots that aren't even accessible from shore, these make getting in and out of the boat simple, quick, and dry
-Wearing cargo pants underneath, the cut of the waders around the crotch area allows very easy access into side pockets and cargo pockets, where I keep a variety of things I use throughout the trip (sunblock, small & common terminal tackle, phone, bandanas, etc)
-Soles provide good traction
Cons:
-If it's hot outside and the sun is on full blast, these will get very hot and I wouldn't recommend wearing them the whole trip
-They can be a little bulky to store inside of a small vessel after launch (don't know what you're using)
As far as durability I can't say a whole lot - I've had them out probably a dozen+ times this year. I use them in a reservoir with some unforgiving terrain, often launching around shale and rock. These have withstood the harsh terrain so far, which was my main concern initially. If you're launching around soft bottom exclusively then I wouldn't even hesitate recommending them.
Regardless of the brand you decide on, I 100% agree with what others said above that the hip waders are a really good option for this type of situation. Hope this helps.