Bull Dog:
Take a look at the reviews on Newegg-here's one from 12/5 which may answer some of your questions:
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This review is from: SanDisk SDSSDP-128G-G25 2.5" 128GB SATA III Internal Solid State Drive (SSD)
Pros: Decent performance, but in the low range as far as SSD drives go. ATTO Benchmark shows 269-321 mb/sec transfer rate for WRITES and 327-374 mb/sec for READS. I purchased a Toshiba pro 128gb SSD at the same time and that is in the 400 mb/sec range for reads. I also have a pair of ADATA sp900 in a Raid0 array that easily reach 1000mb/sec+ speeds for WRITES and approx 550mb/sec speeds for write as a single SSD. I paid approximately the same for all drives, on sale, the Sandisk was about $10 less than the Adata, the Toshiba about $10 more than the Adata, so my best value for speed was the Adata, but this is a decent drive, we'll see how it holds up over time.
Cons: No bracket for 3.5" installation, but for the price I wouldn't expect it (Adata sp900 included it).
Other Thoughts: This should be a great upgrade for an older laptop with SATA.
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BTW this shell shocker deal is up now. I'm considering it, but all my computers are so ancient I really should be thinking of replacement versus upgrading. plus bootup time is meaningless to me.