We purchased the ShowerGlyde SG2 (Open Box version) and have been very pleased with it after 3 uses.
pros:
As others have commented, it is sturdy, stable, and slides (glydes ;-) smoothly & easily. Our toilet and tub (with shower wand) aren't together, so we're using it strictly as a tub entrance & exit device.
We're using it for a 91yo mildly arthritic stroke victim and they've gotten quickly comfortable with it --having transitioned to the SG2 from a swivel & slide competitor model (we needed the extended length of the SG2, as we're using it with a sit & stand/"Sara Stedy" transport device; the SG2 sits almost exactly at the height our Toto commode seat does, at 17" height)
The seat is a good size for our 164lb individual usage, and the cutout makes washing much easier than a solid seat (as our prior unit had); we've not used the insert, but it fits and would work fine if/when needed
I like that the leg feet aren't hard plastic and have a hard rubber feel to them
I also like that it has an optional (additional cost) swivel seat that can be ordered separately/in the future
Order processing and shipment was prompt, and packaging secure for safe shipping reciept.
cons:
none, really; it's pleasingly functional and has greatly enhanced bathing effectiveness/thoroughness with ease (and @ open box = indistinguishable-from-new price, shipping free, satisfied with the value)
neutrals:
* I wish the seat had handles attached to it, along with the option for the one at one end; it is the only slightly discomforting (new user?) factor for us with the SG2
* update: according to SolutionBased rep in an asked Question: " The legs are white coated aluminum." original: I'm concerned about the metal the white painted legs are made of, as to future corrosion potential due to perpetual moisture exposure; hopefully they're either thinner aluminum as well, or stainless steel (?)
* I'm concerned with the plastic T braces that attached the legs and handle to the rails; no way of knowing the durability of such these days, visually
* I'm concerned with the nylon-type rollers used below the seat and on the rails, again as to longevity; while perhaps they provide slight cushioning and/or noise reduction, i'd rather have found machined aluminum rollers used (especially at this price point)
* I would like to see the black plastic parts in blue (or grey); this is purely an aesthetic/cosmetic preference, nothing functional
* it would be nice for the seat to have some padding (like *cough* one competitor's); tho not padded/cushioned, it serves our main purpose adequately
Overall, 5 star purchase for us (thus far...)