A decent older motel they've managed to to update over the years but the age does show through in the amenities and details. If you're thinking of staying here, here's what you can expect: it is phenomenally close to the Disney parks, the only way to get closer is to stay at a Disney hotel at 3-6x the price, the staff is pleasant and accommodating, and the while the rooms are nothing fancy, they are fairly large and modestly updated. Our room was great for our family of 6 (2 adults and 4 kids 10 to 17) because it had two queen beds and a bunk bed for one of the best prices available in the area.
Here's what you will not get: luxury of any sort, reliable wifi (had to hotspot my kids devices because the hotel wifi would go out frequently), a parking area with enough spots for as many rooms as they offer, or any form of breakfast offerings (though they are 100 feet from a Denny's).
When they are operating with what i assume is a fully booked situation, they pack the cars in like sardines, insomuch that if you plan on getting out of the lot quickly during your stay, it had better not be at night or first thing in the morning, because chances are you will be blocked in your space. The staff does their best to hustle and move whatever cars are in your way if you let them know, but plan on that taking 10 minutes or so and then good luck getting that space back.
If you're on a budget and heading to Disneyland, it's hard to go wrong with the Del Sol, especially at the price.