I've stayed at this hotel a number of times this year, always one night at a time (even though it's designed more for extended stays).
I've stayed at other extended stays hotels in the past (like Studio Plus, etc), and this is roughly similar. The front desk is not open in the middle of the night (tho there is provision for check in or check out then), the linens are only changed once a week (or once per stay if you stay less than a week), there is a kitchenette (including microwave, full size refrigerator, dishwasher, and stovetop ranges, and but no conventional oven) and a small pantry of food for sale (honor system) but no "breakfast" (other than what you may put together from the pantry). On some stays, however, I find the pantry to be poorly stocked.
The rooms are clean and reasonably spacious but purely functional in appearance. There is a VCR in every room and some (older) movies available for free rent at the front desk. The TV has most of the local channels (though on shuffled channel numbers) and HBO, HBO Plus, and HBO Signature (the latter two from East Coast feeds!).
It's a convenient location just a couple minutes from the 55 freeway, and a nice spacious parking lot in front. Only business parks immediately around, tho, so it's a short drive (in any of several directions) before you start finding restaurants.
The front desk staff are courteous, but all too often they're not there when you walk up because they're dealing with a guest in a room somewhere else in the hotel. So sometimes you have to wait 5 or 10 minutes until they come back. Also, check in and check out can be slow during busy morning or evening periods since they can only do one at a time.
One very nice feature is free washers and dryers (you can pay 75c for a box of detergent or you can bring your own if you want).
Internet is free via ethernet cable (I bring my own, I'm not sure if they supply one on request), but you have to re-login every time you wake up your laptop, and the pesky toolbar it brings up sometimes messes with the size of your browser window.
(If you've stayed at other Candlewoods before, this is very similar. I'd rate this a bit better run than a couple of the other Candlewoods I've stayed at.)
Be aware that because some guests extend stays unexpectedly and the hotel is often fully booked, there's more chance that they'll "walk" you (send you to an alternate area hotel at no charge to you for the night) at this hotel than at most others in the area. If you want to save money, that can be good, but if you wanted a specific feature of this hotel that night, it can be less good.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC